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PHR1256   Abacavir sulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1253 Acarbose Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1907 Acebutolol hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1266 Acesulfame K Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1005 Acetaminophen Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1970   Acetaminophen Impurity C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1971 Acetaminophen Impurity E Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1972   Acetaminophen Impurity G Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1973 Acetaminophen Impurity I
    • PHR1612   Acetaminophen Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1642   Acetaminophen Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1531 Acetaminophen Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1530 Acetaminophen Related Compound D Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1149 Acetaminophen Related Compound J Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1086 Acetanilide melting point standard Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1908 Acetazolamide Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1219 Acetone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1551 Acetonitrile Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1546 Acetylcholine chloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1098 N-Acetyl-L-cysteine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1432 N-Acetylglucosamine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1177 N-Acetyl-L-tryptophan Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1173 N-Acetyl-L-tyrosine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1523 Acitretin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1254 Acyclovir Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1388 Adapalene Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1383 Adenine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1138 Adenosine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1110 L-Alanine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1281 Albendazole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1967   Albuterol Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1053 Albuterol sulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1373 Alcohol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1599 Alendronate Sodium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1638 Alfuzosin hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1364 Allantoin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1377 Allopurinol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2005 Allopurinol Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2006   Allopurinol Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2007 Allopurinol Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2008 Allopurinol Related Compound D Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2009   Allopurinol Related Compound E Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1981   Allopurinol Related Compound F Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1031 Alpha Tocopherol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1711 Amantadine hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1654   Amikacin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1860 Amikacin Sulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1839   Amiloride Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1747 4′-Aminoacetophenone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1840 Aminobenzoic Acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1743 3-Aminobenzoic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1501 Aminobutanol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1224 Aminocaproic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1507 2-Amino-5-Chlorobenzophenone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1225 3-Aminophenol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1148 4-Aminophenol (Acetaminophen Related Compound K) (Paracetamol Impurity K) Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1745 4-Aminophenol hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1339 3-Amino-1-propanol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1746 4-Aminosalicylic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1164 Amiodarone hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1646 Amiodarone Related Compound H Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1384 Amitriptyline hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1776   Amitriptyline Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1185 Amlodipine besylate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1327 Ammonium chloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1689 Ammonium Glycyrrhizate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1841 Amoxapine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1127 Amoxicillin trihydrate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1662   Amphotericin B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1424 Ampicillin Sodium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1393 Ampicillin Trihydrate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1667 t-Amyl Alcohol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1386   Amylmetacresol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1783   Anastrozole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1218 trans-Anethole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1212 Anisole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1677 Anthralin (Dithranol) Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1489 L-Arabinitol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1106 L-Arginine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1454 Arginine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1784   Aripiprazole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1882   Articaine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1881 Articaine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1008 Ascorbic Acid
    • PHR1708   Ascorbic acid Impurity C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1709   Ascorbic Acid Impurity D Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1433 Ascorbyl Glucoside Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1455 Ascorbyl Palmitate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1381 Aspartame Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1104 L-Aspartic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1003 Aspirin (Acetyl Salicylic Acid) Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1940   Aspirin Impurity D Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1941 Aspirin Impurity E Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1942 Aspirin Impurity F Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1909 Atenolol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1679 Atomoxetine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1422 Atorvastatin Calcium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1868   Atorvastatin Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1869 Atorvastatin Related Compound B pharmaceutical secondary standard, certified reference material
    • PHR1870 Atorvastatin Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1871 Atorvastatin Related Compound D Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1872 Atorvastatin Related Compound E pharmaceutical secondary standard, certified reference material
    • PHR1873   Atorvastatin Related Compound H Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1874 Atorvastatin Related Compound I pharmaceutical secondary standard, certified reference material
    • PHR1591 Atovaquone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1379 Atropine Sulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1073 Avobenzone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1911 Azacitidine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1282 Azathioprine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1636 Azelastine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1088 Azithromycin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1785 Aztreonam Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1590 Bacitracin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1559 Bacitracin Zinc Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1682 Baclofen Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1619 Beclomethasone Dipropionate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1912 Benazepril hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1203 Benzaldehyde Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1371 Benzalkonium Chloride 10% Solution Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1681 Benzalkonium Chloride 50% Solution Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1310 Benzene Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1425 Benzethonium Chloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1158 Benzocaine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1050 Benzoic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1204 Benzophenone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1028 1,4-Benzoquinone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1192 Benzothiadiazine Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1019 Benzyl alcohol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1213 Benzyl benzoate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1370 Benzyl Nicotinate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2023   (E)-2-[(1-Benzylpiperidin-4-yl)methylene]-5,6-dimethoxyindan-1-one(Donepezil Related Compound A) Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1502 Berberine Chloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1349 Beta Alanine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1439 Beta-Cyclodextrin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1398 Betamethasone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1779 Betamethasone Acetate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1399   Betamethasone Dipropionate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1780 Betamethasone Valerate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1678 Bicalutamide Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1296 Bifonazole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1233 Biotin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1456 Bis(2 ethylhexyl)maleate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1913 Bisoctrizole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1831 Bromhexine hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1861 Bromodiphenhydramine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1864   Brompheniramine Maleate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1178 Budesonide Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1822   Budesonide Related Compound G Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1823   Budesonide Related Compound L Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1128 Bupivacaine hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1738   Bupivacaine Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1756 Bupivacaine Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1729 Buprenorphine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1730 Bupropion Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1752   Bupropion Hydrochloride Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1753   Bupropion Hydrochloride Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1754   Bupropion Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1755   Bupropion Related Compound F Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1917 Buspirone hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1209 1-Butanol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1563 2-Butanol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1621 Butoconazole Nitrate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1211 Butyl acetate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1304 Butylated hydroxyanisole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1117 Butylated Hydroxytoluene Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1306 3-tert-Butyl-4-hydroxyanisole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1560 tert-Butyl Methyl Ether Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1022 Butylparaben Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2147   2-(4-sec-Butylphenyl)prop-2-enoic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1009 Caffeine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1999 Caffeine Impurity C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2000 Caffeine Impurity F Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1951   Caffeine Impurity E Nitrate (Caffeidine Nitrate) Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1095 Caffeine Melting Point Standard Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1362 Calcium Acetate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1361 Calcium Ascorbate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1326 Calcium carbonate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1457 Calcium Lactobionate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1232 Calcium-d-pantothenate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1119 D-Camphor Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1854 Candesartan Cilexetil Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2022   Candesartan Cilexetil Impurity I Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2017   Candesartan Cilexetil Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2018   Candesartan Cilexetil Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2019   Candesartan Cilexetil Related Compound D Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2020   Candesartan Cilexetil Related Compound F Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2021   Candesartan Cilexetil Related Compound G Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1405 Capecitabine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1716   Capreomycin Sulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1202 Caprylic Acid (Octanoic Acid) Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1450 Capsaicin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1307 Captopril Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1511 Carbachol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1067 Carbamazepine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1918 Carbamazepine Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1655 Carbidopa Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1684   Carbimazole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1239 β-Carotene Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1452 Carprofen Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1564 Carprofen Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1265 Carvedilol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1963 (+)-Catechin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1283   Cefaclor Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1291   Cefazolin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1763   Cefepime hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1847   Ceftazidime Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1521   Ceftiofur Sodium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1382 Ceftriaxone Sodium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1683 Celecoxib Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1707   Celecoxib Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1848 Cephalexin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1656 Cetirizine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1710   Cetirizine hydrochloride Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1133 Cetyl Alcohol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1166 Cetyl Palmitate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1226 Cetylpyridinum chloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1412   Chloramphenicol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1421 Chlorhexidine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1222   Chlorhexidine acetate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1294 Chlorhexidine digluconate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1459 Chlorhexidine Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1200 p-Chloroaniline Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1665 Chlorobenzene Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1744 3-Chlorobenzoic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1183 2-Chlorobenzophenone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1545 Chlorobutanol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1552 Chloroform Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1741 2-Chloro-5-nitrobenzoic acid Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1258 Chloroquine phosphate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1179 Chlorothiazide Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1478 Chloroxylenol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR2004   Chlorpheniramine Impurity A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1016 Chlorpheniramine Maleate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1647 Chlorpheniramine Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1688   Chlorpheniramine Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1284   Chlorpropamide Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1520 Chlortetracycline Hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1919 Chlorzoxazone
    • PHR1237 Cholecalciferol (Vitamin D3) Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1533 Cholesterol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1460 Choline Bitartrate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1251 Choline chloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1786 Chondroitin Sulfate Sodium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1920 Ciclopirox Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1503 Cilostazol Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1653 Cilostazol Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1676 Cilostazol Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1075 Cimetidine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1089 Cimetidine hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1167 Ciprofloxacin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1044 Ciprofloxacin HCl Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1910   Ciprofloxacin Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1624 Cisplatin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1640 Citalopram Hydrobromide Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1901   Citalopram Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1902   Citalopram Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1903   Citalopram Related Compound D Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1904   Citalopram Related Compound E Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1863   Citalopram Related Compound F Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1905   Citalopram Related Compound G Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1906   Citalopram Related Compound H Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1071 Citric acid, Anhydrous Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1038 Clarithromycin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1966   Clarithromycin Impurities G and O
    • PHR1980   Clarithromycin Impurity N Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1968 Clarithromycin Impurity Q Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1159   Clindamycin hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1021 Clindamycin Phosphate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1921 Clobetasol Propionate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1720 Clomipramine hydrochloride Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1431 Clopidogrel Bisulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1990 Clopidogrel Related Compound A Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1991 Clopidogrel Related Compound B Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1992 Clopidogrel Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1058 Clotrimazole Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1922 Cloxacillin Sodium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1597   CMIT/MIT Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1764 Colchicine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1737   Colistimethate Sodium Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1605   Colistin Sulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1461 Copper Chlorophyllin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1477 Copper Sulfate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1923 Cortisone Acetate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1462 Creatinine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1210 Cumene Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1234 Cyanocobalamin Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1687 Cyclohexane Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1404 Cyclophosphamide Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1765 Cycloserine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1092 Cyclosporine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1102 L-Cysteine hydrochloride monohydrate Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1323 L-Cystine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1787 Cytarabine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1350 Cytosine Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1565 D4 Cyclomethicone Pharmaceutical Secondary Standard; Certified Reference Material
    • PHR1566 D5 Cyclomethicone Pharmaceutical Secondary Standard; Certified Reference Material