Certified Stains & Dyes

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Sigma-Aldrich has just released a new brochure highlighting 55 stains and dyes certified by the Biological Stain Commission, in addition to 300 other popular stains and dyes. Please complete the form below to request a free copy of this brochure.

BSC Certified Stains & Dyes	back to top
Product Name	Product #
Acid Fuchsin calcium salt certified by the BSC for VanGieson connective tissue stain and Mallory aniline blue connective stain	A3908
Alcian Blue 8GX certified	A3157
Alizarin Red S certified by the BSC for (for gross staining of skeletons in small vertebrates and for differentiating bone from cartilage in mammalian embryos)	A5533
Aniline Blue diammonium salt certified	41,504-9
Auramine O certified by the BSC for staining acid-fast bacteria in sputum or in paraffin sections of infected tissue.	A9655
Azure A certified by the BSC for (for staining cell granules, microorganisms and other tissue. A constituent of Tetrachrome Stain (Macneal) for differentiating leucocytes.)	A2918
Azure B certified by the BSC for differentiating cellular RNA and DNA in plant tissues.	A4043
Basic Fuchsin certified	85,734-3
Basic Fuchsin certified by the BSC for staining bacterial flagella.	B0904
Bismarck Brown B	86,111-1
Brilliant Cresyl Blue ALD certified by the BSC for staining the reticulum of immature red blood cells and platelets.	B5388
Brilliant Green certified by the BSC for determining the presence of the colon organisms in drinking water and as a bacteriostatic agent.	B4014
Carmine certified by the BSC for Orth's lithium carmine technique.	C6152
Congo Red certified by the BSC for (for use with Mayer's hemalum as a cytoplasmic stain on tissues fixed in Bouin's fluid, and as a stain for amyloid in Highman's technique.)	C6277
Cresyl Violet acetate certified by the BSC for the Powers and Clark method on formalin or Bouin's fixed spinal cord or brain.	C5042
Crystal Violet certified by the BSC for the Gram stain; the Flemming triple stain with iodine; and Newton's crystal violet-iodine technique.	C0775
Darrow Red certified	21,188-5
Eosin B Dye content min. 85 %	E8761
Eosin Y disodium salt Dye content min. 80 %	E4382
Erythrosin B sodium salt certified by the BSC for (for use with methylene blue as a plasma stain for nerve cells; for staining bacteria in soil; and as a phosphorescent triple probe for studying diffusion of membrane proteins.)	E8886
Erythrosin extra bluish certified	19,826-9
Eosin alcohol soluble certified	19,954-0
Fast Green FCF certified by the BSC for use as a cytological counterstain and in Lillie's modification of the Masson's trichrome stain.	F7258
Giemsa stain certified by the BSC for (for use in staining leukocytes in blood films and for staining malarial parasites in thin and thick films of blood.)	G5637
Hematoxylin certified	H3136
Indigo Carmine certified by the BSC for (for use with acid fuchsin as a stain for Negri bodies and with eosin Y as a counterstain to hematoxylins for staining vaginal smears.)	I2387
Jenner's stain certified by the BSC for the Romanowsky-type stain for peripheral blood smears.	J1875
Light Green SF Yellowish Dye content min. 65 %	L1886
Malachite Green oxalate salt certified by the BSC for (for use as a counterstain on botanical material; as a spore stain for bacteria in the Schaeffer and Fulton method; and in Conklin's modification of the method.)	M9015
Methyl Blue certified	M5528
Methylene Blue certified by the BSC for histological and bacteriologic staining and as a constituent of Wright's blood stain.	M9140
Methyl Orange certified	23,410-9
Methylene Violet (Bernthsen) certified	21,631-3
Methyl Green	M5015
Methyl violet 2B certified	19,809-9
Neutral Red certified by the BSC for supravital staining of living blood cells.	N6634
Nigrosin certified	19,828-5
Nile Blue A certified by the BSC for stain for fats and for the differentiation of melanins and lipofuscins.	N0766
Oil Red O certified	19,819-6
Orange G certified by the BSC for Mallory's connective tissue stain and as a counterstain in histology and cytology.	O7252
Orange II sodium salt certified by the BSC for (as a general tissue stain with eosin and azure C; with fast green FCF, safranin O and crystal violet in quadruple staining of tissues; as a stain for keratin in skin sections.)	O4505
Orcein synthetic certified by the BSC for 8020	O7505
Pararosaniline hydrochloride Dye content min. 88 %	P1528
Phloxine B certified by the BSC for Mallory's phloxine-methylene blue stain.	P4030
Pyronin B certified 30 % (dye content)	20,130-8
Pyronin Y certified by the BSC for Kurnick's methyl green-pyronin stain on liver cells.	P6653
Resazurin sodium salt certified	19,930-3
Rose Bengal sodium salt certified by the BSC for (as a fluorochrome for UV study of fats; for plate counts of soil fungi (bacteriostatic, but allows growth of fungi).)	R4507
Safranin O certified by the BSC for (for use as a chromosome stain in the Flemming triple stain in combination with light green SF yellowish or fast green FCF; and in Gram stain.)	S8884
Sudan III certified by the BSC for use as a fat stain.	S4136
Sudan IV certified by the BSC for use as a fat stain.	S4261
Sudan Black B certified	19,966-4
Thionin acetate Dye content min. 85 %	T7029
Toluidine Blue O	T0394
Wright stain certified by the BSC for staining blood and bone marrow films, and for staining malarial parasites in blood films.	W3000

Other Popular Stains & Dyes		back to top
Product Name	Grade	Product #
1-(2-Pyridylazo)-2-naphthol indicator grade	Indicator	101036
2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol 97 %	Technical	180017
2,3,5-Triphenyltetrazolium chloride	Technical	T8877
2,6-Dichloroindophenol sodium salt hydrate	Technical	D1878
2',7'-Dichlorofluorescein ACS reagent	ACS	410217
Chromotropic acid disodium salt dihydrate approx. 98 %	Technical	D5144
4-Amino-3-hydroxy-1-naphthalenesulfonic acid ACS reagent 98+ % ³98.0 %	ACS	398969
Acid Fuchsin	Technical	F8129
Acridine orange hydrochloride hydrate 99 % (HPLC)	HPLC/TLC/ Electrophoresis	318337
Acridine orange solution 10 mg/ml in water	Technical	A8097
Acridine orange hemi(zinc chloride) salt 90 % (dye content)	Technical	158550
Adrenochrome	Technical	A5752
Alcian Blue 8GX	Technical	236551
Alcian Blue 8GX powder	Technical	A5268
Alcian Blue, pyridine variant	Technical	335630
Alcian Blue-tetrakis(methylpyridinium) chloride	Technical	A4045
Alizarin	Technical	122777
Alizarin yellow R	Technical	195073
Allura Red AC	Technical	458848
Aurintricarboxylic acid ammonium salt ACS reagent	ACS	A36883
Amaranth	Technical	A1016
Anthrone	Technical	A1631
Anthrone ACS reagent 97 %	ACS	319899
Arsenazo III	Technical	A92775
Astra Blue	Technical	363405
Auramine O 80 % (dye content)	Technical	856533
Azobenzene 99 %	Technical	424633
Azure B	Technical	227935
Azure II A mixture of Azure B and Methylene Blue in equal amounts.	Technical	861065
Basic Fuchsin	Technical	215597
Benzophenone imine 97 %	Technical	293733
Biotin-4-Fluorescein	Technical	B9431
Bisbenzimide H 33258 min. 98 % (TLC)	Technical	B2883
Bismarck Brown Y (G)	Technical	B2759
Brilliant Black BN	Technical	211842
Ponceau BS	Technical	B6008
Brilliant Blue G Dye content approx. 60 % by elemental analysis	Technical	B1131
Brilliant Blue G min. 90 % (TLC)	HPLC/TLC/ Electrophoresis	B5133
Brilliant Blue G solution Concentrate	Technical	B8522
Brilliant Blue G Dye content approx. 90 % by elemental analysis	Technical	B0770
Brilliant Blue R Dye content approx. 50 %	Technical	B0149
Brilliant Blue R Dye content approx. 90 %	Technical	B7920
Brilliant Blue R Concentrate	Technical	B8647
Brilliant Blue R Staining Solution Ethanol based	Technical	B6529
PhastGel Blue R	Technical	B4921
Brilliant Cresyl Blue ALD	Technical	860867
Brilliant Green	Technical	B6756
Bromocresol Green Sultone Form	Technical	B0381
Bromocresol Green sodium salt crystalline	Technical	B1256
Bromocresol Green sodium salt ACS reagent	ACS	114367
Bromocresol Purple	Technical	B5880
Bromobimane min. 97 %	Technical	B4380
Bromocresol Green sodium salt solution 0.04 wt. % in water	Technical	318701
Bromocresol Green Sultone Form ACS reagent	ACS	114359
Bromocresol Purple indicator grade	Indicator	114375
Bromocresol Purple solution 0.04 wt. % in water	Technical	318736
Bromocresol Purple sodium salt indicator grade	Indicator	860891
Bromophenol Blue solution 0.04 wt. % in water	Technical	318744
Bromphenol Blue sodium salt ACS reagent	ACS	114405
Bromophenol Red sodium salt	Technical	B7010
Bromosulfalein	Technical	S0252
Bromphenol Blue sodium salt	Technical	B6131
Bromphenol Blue sodium salt for molecular biology, for electrophoresis	HPLC/TLC/ Electrophoresis	B8026
Bromphenol Blue sodium salt for electrophoresis	HPLC/TLC/ Electrophoresis	B5525
Bromophenol Blue	Technical	B0126
Bromothymol blue sodium salt	Technical	B8630
Bromothymol blue sodium salt ACS reagent	ACS	114421
Calcein	Technical	C0875
Calcein AM solution min. 4 mM in DMSO min. 90 % (TLC) liquid	Technical	C1359
Calcon^®	Technical	H1878
Calmagite indicator grade	Indicator	C204
Canada balsam	Technical	C1795
Carbazole approx. 95 %	Technical	C5132
Carbol Fuchsin	Technical	C4165
Carbostyril 124 99 %	Technical	363308
Cardiogreen	Technical	I2633
Carmine powder	Technical	C1022
Carminic acid	Technical	229253
Celestine blue	Technical	206342
Chicago Sky Blue 6B powder	Technical	C8679
Chlorophenol Red indicator grade	Indicator	199524
Chlorophenol Red sodium salt	Technical	235482
Chlorophyll a from Anacystis nidulans algae	Technical	C6144
Chlorophyll b from spinach	Technical	C5878
Chromeazurol B	Technical	M1782
Chromeazurol S	Technical	199532
Chromotrope 2R suitable for modified Gomori Trichrome stain	Technical	C3143
Chromotrope 2R	Technical	202088
Chromotropic acid disodium salt dihydrate ACS reagent	ACS	213276
Chrysin	Technical	C80105
Cibacron Blue 3G-A	Technical	C9534
Congo Red	Technical	C6767
Coumarin 6 98 %	Technical	442631
Coumarin 314	Technical	392995
Coumarin 343	Technical	393029
Practice of Thin Layer Chromatography, 3rd ed.	Technical	P5691
m-Cresol Purple sodium salt	Technical	211761
Cresol red indicator grade	Indicator	114472
Cresol Red sodium salt indicator grade	Indicator	114480
Cresyl Violet acetate	Technical	C1791
Crocein Scarlet 7B	Technical	C8822
Crystal Violet Dye content approx. 90 %	Technical	C3886
Crystal Violet ACS reagent ³90.0 % as anhydrous	ACS	C6158
Curcumin from Curcuma longa (Turmeric) 65-70 % (typically) powder	Technical	C1386
Phloxine B crystalline	Technical	P2759
Demecolcine min. 98 % (TLC)	Technical	D7385
Diamidino yellow dihydrochloride	Technical	D0281
o-Dianisidine dihydrochloride tech.	Technical	191248
o-Dianisidine dihydrochloride crystalline	Technical	D3252
o-Dianisidine reagent	Technical	D2679
Dihydroethidium	Technical	D7008
Dimidium bromide 95 %	Technical	234281
Diphenylamine	Technical	D2385
Dithizone	Technical	D5130
Dithizone ³85.0 % ACS reagent	ACS	194832
Direct Blue 71	Technical	212407
Direct Red 80	Technical	365548
Dithizone	Technical	D5130
Dithizone ³85.0 % ACS reagent	ACS	194832
Eosin Y Dye content approx. 99 %	Technical	E4009
Eosin Y disodium salt Dye content approx. 85 %	Technical	E6003
Eosin Y solution 5 wt. % in water	Technical	318906
Eriochrome Black T ACS reagent, indicator grade	ACS	858390
Eriochrome Cyanine R practical grade	Technical	E2502
Erythrosin B 95+ %	Technical	200964
Ethidium bromide approx. 95 % (HPLC)	Technical	E8751
Ethidium homodimer solution	Technical	E1903
Ethyl Orange sodium salt indicator grade	Indicator	199567
Evans Blue	Technical	E2129
Fast Black K Salt hemi(zinc chloride) salt practical grade	Technical	F7253
Fast Blue BB Salt hemi(zinc chloride) salt	Technical	F3378
Fast Blue B Salt	Technical	340774
Fast Corinth V zinc chloride double salt	Technical	227366
Fast Garnet GBC sulfate salt	Technical	F8761
Fast Green FCF Dye content approx. 90 %	Technical	F7252
Fast Red Violet LB Salt	Technical	F3381
Fast Violet B Salt crystalline	Technical	F1631
Ferroin solution 0.1 wt. % in water	Technical	318922
Fluo 3-AM approx. 70 %	Technical	F6142
Fluorescamine 98 %	Technical	201650
Fluorescein sodium salt	Technical	F6377
Fluoresceinamine isomer I	Technical	201626
Fluorescein diacetate	Technical	F7378
Fluorescein 5(6)-isothiocyanate approx. 90 % (HPLC)	Technical	F3651
Fluorescein isothiocyanate isomer I suitable for protein labeling min. 90 % (HPLC) powder	Technical	F7250
Fluorescein isothiocyanate isomer I approx. 98 % (HPLC)	Technical	F4274
Fluorescein isothiocyanate isomer I 90 %	Technical	F2502
Fluorescent Brightener 28	Technical	F3543
Fura 2-AM powder	Technical	F0888
Fura PE 3-AM approx. 90 %	Technical	F0918
Fusidic acid	Technical	F0756
Gentian Violet USP	USP	G2039
Hematoxylin	Technical	H9627
Hydroxynaphthol Blue disodium salt ACS reagent	ACS	219916
Indigo Carmine	Technical	I8130
Iodonitrotetrazolium chloride	Technical	I8377
Janus Green B	Technical	J1000
Jenner's stain suitable for blood stain	Technical	J1625
Keratin azure	Technical	K8500
Leishman's stain	Technical	L6254
Light Green SF Yellowish crystalline	Technical	L5382
Lucifer Yellow CH dilithium salt	Technical	L0259
Lucifer Yellow CH dipotassium salt 90 % (dye content)	Technical	328197
Lumichrome	Technical	103217
Malachite Green oxalate salt	Technical	M6880
Malachite Green Carbinol base	Technical	229105
Melanin from Sepia officinalis	Technical	M2649
Metanil Yellow	Technical	202029
Methyl 3-amino-5,6-dichloro-2-pyrazinecarboxylate 97 %	Technical	277878
Methyl Blue	Technical	M6900
Methyl Green approx. 85 %	Technical	M8884
Methyl Orange ACS reagent	ACS	114510
Methyl Purple in solution in water	Technical	277339
Methyl Red	Technical	M7267
Methyl Red hydrochloride ACS reagent	ACS	861235
Methyl Red sodium salt	Technical	M8256
Methyl Red crystals ACS reagent	ACS	250198
Methyl Red sodium salt ACS reagent	ACS	114502
Methylene Blue	Technical	M44907
Methylene Blue solution	Technical	1808
Methylene Blue	Technical	MB1
Methylene Blue	Cell/Molecular	M4159
Methylene Violet 3RAX	Technical	307505
Methylthymol Blue sodium salt	Technical	B42004
MTT Formazan powder	Technical	M2003
Murexide ACS reagent	ACS	222461
Naphthol Blue Black	Technical	195243
Naphthol Green B	Technical	N7257
Naphthol Yellow S	Technical	199621
a-Naphtholphthalein practical grade	Technical	N8257
N,N-Diethyl-p-phenylenediamine hemioxalate salt	Technical	D5143
Neutral Red powder cell culture tested	Cell/Molecular	N4638
Neutral Red practical grade	Technical	N2880
Neutral Red	Technical	N7005
New Fuchsin	Technical	N0638
Nigrosin water soluble	Technical	N4754
Nile Red	Technical	N3013
Ninhydrin 97 %	Technical	454044
Nitro Blue Tetrazolium tablet	Cell/Molecular	N5514
Nitrotetrazolium blue chloride approx. 98 % (TLC)	HPLC/TLC/ Electrophoresis	N6876
Nitrotetrazolium blue chloride powder	Cell/Molecular	N6639
Nitrotetrazolium Blue chloride monohydrate	Technical	N15405
Nuclear Fast Red suitable for determination of calcium	Technical	N8002
Oil Red O powder	Technical	O0625
Orange G	Technical	O1625
Orange G	Cell/Molecular	O3756
Orcein synthetic	Technical	O7380
Orcinol monohydrate from lichens	Technical	O1875
Osmium tetroxide	Technical	O5500
Oxacillin sodium salt hydrate	Technical	O1002
Pararosaniline Base crystalline	Technical	P7632
Pararosaniline hydrochloride powder	Technical	P3750
Perylene Purified by sublimation 99.5+ %	Technical	394475
Perylene 99+ %	Technical	P11204
PhastGel Blue R	Technical	B4921
Phenazine ethosulfate approx. 95 %	Technical	P4544
Phenol red solution liquid 0.5% cell culture tested	Cell/Molecular	P0290
Phenol red solution for electrophoresis	HPLC/TLC/ Electrophoresis	P8421
Phenol Red	Technical	P4633
Phenol Red powder cell culture tested	Cell/Molecular	P3532
Phenol Red sodium salt	Technical	P4758
Phenol Red sodium salt powder cell culture tested insect cell culture tested	Cell/Molecular	P5530
Phenol Red ACS reagent	ACS	114529
Phenol Red sodium salt solution 0.04 wt. % in water	Technical	319244
Phenol Red sodium salt ACS reagent	ACS	114537
Phenolphthalein	Technical	P9750
Phenolphthalein USP	USP	P9471
Phenolphthalein solution 0.5 wt. % in 50 wt. % ethyl alcohol	Technical	319236
Phenolphthalein ACS reagent	ACS	105945
Phenosafranin	Technical	199648
Phenylhydrazine hydrochloride	Technical	P6926
Phloxine B crystalline	Technical	P2759
Ponceau BS	Technical	B6008
Ponceau S	Technical	141194
Ponceau S practical grade	Technical	P3504
Ponceau S solution	Technical	P7170
Ponceau Xylidine	Technical	P2395
Potassium phthalate monobasic min. 99 %	Technical	P6758
Propidium iodide min. 95 % (HPLC)	Technical	P4170
Propidium iodide solution solution (1.0 mg/ml in water)	Technical	P4864
Pyrogallol Red	Technical	P8759
Pyronin B	Technical	P6892
Pyronin Y	Cell/Molecular	P9172
Quinaldine Red	Technical	201316
Reactive blue 4	Technical	244813
Reichardt's dye	Technical	272442
Reinecke salt	Technical	R4126
Remazol Brilliant Blue R	Technical	R8001
Resorufin sodium salt	Technical	230154
Rhodamine B	Technical	R6626
Rhodamine B 90 % (dye content)	Specialty-material science	252425
Rhodamine 6G 99 % (dye content)	Technical	252433
Rhodamine 6G	Technical	R4127
Rhodamine 6G perchlorate 99 % (dye content)	Technical	252441
Rhodamine 110 chloride 75 % (dye content)	Technical	432202
Rhodamine 123	Technical	R8004
Rhodamine B base	Technical	234141
Rhodamine B isothiocyanate	Technical	283924
Rose Bengal sodium salt 95 % (dye content)	Technical	330000
Rose Bengal sodium salt	Technical	R3877
p-Rosolic acid	Technical	861324
Ruthenium Red	Technical	R2751
Saffron	Technical	S8381
Safranin O Dye content approx. 85 %	Technical	S2255
Schiff's Fuchsin-sulfite reagent	Technical	S5133
Scopoletin	Technical	S2500
Silver nitrate >99 % (titration)	Technical	S6506
Silver nitrate SigmaUltra >99 % (titration)	Ultra	S8157
Silver nitrate >99 % (titration) plant cell culture tested	Cell/Molecular	S7276
Silver nitrate USP	USP	S1179
Solvent Blue 38 practical grade	Technical	S3382
Solvent Green 3	Technical	211982
Sudan Black B practical grade	Technical	S2380
Sudan III	Technical	S4131
SYBR^® Green II RNA gel stain 10,000 × in DMSO	Cell/Molecular	S9305
SYBR^® Green I nucleic acid gel stain 10,000 × in DMSO	Cell/Molecular	S9430
Tannic acid powder	Technical	T0125
Tetrazolium Blue Chloride	Technical	T4375
Thiazolyl Blue Tetrazolium Bromide approx. 98 % (TLC)	Technical	M2128
Thioflavin T	Technical	T3516
Thionin acetate, dye content approx. 90 %	Technical	T3387
Thymol Blue ACS reagent	ACS	114545
Thymol Blue sodium salt ACS reagent	ACS	861367
Thymol min. 99.5 %	Technical	T0501
Thymolphthalein ACS reagent	ACS	114553
o-Tolidine dihydrochloride min. 97 %	Technical	T6269
Toluidine Blue O	Technical	T3260
Toluidine Red	Technical	199753
True Blue aceturate salt	Technical	T5891
Trypan Blue	Technical	302643
Trypan Blue powder cell culture tested	Cell/Molecular	T6146
Trypan Blue solution liquid 0.4% cell culture tested	Cell/Molecular	T8154
Uniblue A sodium salt	Technical	298409
Victoria Blue B	Technical	V0753
Wright stain suitable for blood stain	technical	W0625
Xylene Cyanol FF	Technical	335940
Xylene Cyanole FF for molecular biology	Cell/Molecular	X4126
Xylenol Orange tetrasodium salt ACS reagent	ACS	398187
Xylenol Orange tetrasodium salt 90 % (dye content)	Technical	227854
Xylidyl blue I	Technical	248266
Zincon sodium salt	Technical	201332

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