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B5906 Bacteriochlorophyll from Rhodopseudomonas sphaeroides 17499-98-8  
    • 306525 Basacryl Red GL Dye content 19 % 42373-04-6  
    • 378011 Basic Blue 3 Dye content 25 % 33203-82-6  
    • 324825 Basic Blue 41 Dye content 40 % 12270-13-2  
    • 861081   Basic Fuchsin special for flagella, certified    
    • B0904   Basic Fuchsin special for flagella, certified   Certified by the Biological Stain Commission
    • 857343 Basic Fuchsin certified by the Biological Stain Commission, Dye content ≥88 % 569-61-9 Certified by the Biological Stain Commission
    • 215597 Basic Fuchsin Dye content >85 % 569-61-9  
    • B1125 Bathocuproinedisulfonic acid disodium salt for spectrophotometric det. of Cu, Fe 52698-84-7  
    • B1375 Bathophenanthrolinedisulfonic acid disodium salt hydrate ≥95% 52746-49-3 (anhydrous)  
    • 429600 Benzaldehyde-2,4-dinitrophenylhydrazone environmental standard, 99% 1157-84-2 Analytical, Environmental, Standard
    • 241709 Benzaldehyde tosylhydrazone 98% 1666-17-7  
    • B3503 Benzidine ≥95% 92-87-5  
    • B1883 Benzidine ISOPAC®, ≥98.0% (N) 92-87-5  
    • B3383 Benzidine dihydrochloride ≥99% (titration) 531-85-1  
    • 293733 Benzophenone imine 95% 1013-88-3  
    • B6931 Benzophenone-4-isothiocyanate 26328-59-6  
    • 272795 N-Benzylideneaniline 99% 538-51-2  
    • 301108 N-Benzylidenebenzenesulfonamide 97% 13909-34-7  
    • 231304 N-Benzylidenebenzylamine 99% 780-25-6  
    • B9431 Biotin-4-Fluorescein    
    • B2883 bisBenzimide H 33258 ≥98% (HPLC and TLC) 23491-45-4  
    • B2261 bisBenzimide H 33342 trihydrochloride ≥98% (HPLC and TLC) 23491-52-3  
    • C6884   2′,7′-Bis(2-carboxyethyl)-5(6)-carboxyfluorescein-dextran    
    • C9012 Bis(cyclohexanone)oxaldihydrazone 370-81-0  
    • D8189 Bis(1,3-dibutylbarbituric acid) trimethine oxonol ≥95% (HPLC) 70363-83-6  
    • 264229 N,N′-Bis(2,5-di-tert-butylphenyl)-3,4,9,10-perylenedicarboximide Dye content 97 % 83054-80-2  
    • 149063 1,3-Bis[4-(dimethylamino)phenyl]-2,4-dihydroxycyclobutenediylium dihydroxide, bis(inner salt) Dye content 90 % 43134-09-4  
    • 572128 [4-[Bis(2-hydroxyethyl)amino]phenyl]-1,1,2-ethylenetricarbonitrile 98% 56672-91-4  
    • 15000 Bismarck Brown R for microscopy (Bact., Hist.) 5421-66-9 Analytical, Microscopy
    • 861111 Bismarck Brown Y certified by the Biological Stain Commission, Dye content 50 % 10114-58-6 Certified by the Biological Stain Commission
    • B2759 Bismarck Brown Y (G) 10114-58-6  
    • 269492 N,N′-Bis(salicylidene)-1,2-phenylenediamine 97% 3946-91-6  
    • B2906   Blue rayon trisulfonated 127545-70-4  
    • 211842 Brilliant Black BN Dye content 60 % 2519-30-4  
    • B8522 Brilliant Blue G solution Concentrate 6104-58-1  
    • B0149 Brilliant Blue R Dye content ~50 %, Technical grade 6104-59-2 Electrophoresis
    • B7920 Brilliant Blue R pure 6104-59-2 Electrophoresis
    • B0770 Brilliant Blue G pure 6104-58-1  
    • B1131 Brilliant Blue G Dye content ~60 % by elemental analysis 6104-58-1  
    • B8647 Brilliant Blue R Concentrate suitable for SDS-PAGE, methanol solution 6104-59-2 Electrophoresis
    • B6529 Brilliant Blue R Staining Solution ethanol solution 6104-59-2 Electrophoresis
    • 16030   ‘Brilliant Cresyl blue’ for microscopy (Vit.), mixture of toluidine blue and waterblue   Analytical, Microscopy
    • 860867 Brilliant Cresyl Blue ALD Certified by the Biological Stain Commission 81029-05-2  
    • B5388 Brilliant Cresyl Blue ALD certified by the Biological Stain Commission 81029-05-2 Certified by the Biological Stain Commission
    • 210757 Brilliant Crocein MOO Dye content 70 % 5413-75-2  
    • B6756 Brilliant Green Dye content ~90 % 633-03-4  
    • B4014 Brilliant Green certified by the Biological Stain Commission 633-03-4 Certified by the Biological Stain Commission
    • 201375 Brilliant Yellow Dye content 70 % 3051-11-4  
    • 456063 Bromaminic acid sodium salt 6258-06-6  
    • B4380 Bromobimane ≥97% 71418-44-5  
    • 371297 4′-Bromo-(1,1′-biphenyl)-4-ol 97% 29558-77-8  
    • 510998 Bromochlorophenol Blue Dye content 95 % 2553-71-1  
    • 114359 Bromocresol Green ACS reagent, Dye content 95 % 76-60-8 ACS reagent
    • B1256 Bromocresol Green sodium salt crystalline 62625-32-5  
    • 114367 Bromocresol Green sodium salt ACS reagent, Dye content 90 % 62625-32-5 ACS reagent
    • 318701 Bromocresol Green sodium salt solution 0.04 wt. % in H2O 62625-32-5  
    • 318728 Bromocresol Green/Methyl Red, mixed indicator solution in methanol    
    • 17470 Bromocresol Green Sultone Form for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4) 76-60-8 Microscopy
    • 114375 Bromocresol Purple BioReagent, suitable for indicator, Dye content 90 % 115-40-2 Analytical, BioReagent, Indicator
    • B5880 Bromocresol Purple Technical grade 115-40-2  
    • 17490 Bromocresol Purple for microscopy (Hist., Vit.), indicator (pH 5.2-6.8) 115-40-2  
    • 860891 Bromocresol Purple sodium salt indicator grade, Dye content 90 % 62625-30-3 Analytical, Indicator
    • 318736 Bromocresol Purple solution 0.04 wt. % in H2O 62625-30-3  
    • B0126 Bromophenol Blue 115-39-9  
    • 114391 Bromophenol Blue ACS reagent 115-39-9 ACS reagent
    • B8026 Bromophenol Blue sodium salt for molecular biology, for electrophoresis 34725-61-6 Electrophoresis, Molecular Biology Reagent
    • B5525 Bromophenol Blue sodium salt for electrophoresis 34725-61-6 Electrophoresis
    • B6131 Bromophenol Blue sodium salt Technical grade 34725-61-6 Histology
    • 114405 Bromophenol Blue sodium salt Dye content 90 %, ACS reagent 34725-61-6 ACS reagent
    • 318744 Bromophenol Blue solution 0.04 wt. % in H2O 34725-61-6  
    • 338486 (3-Bromopropyl)triethylammonium bromide technical grade, ~80% 3720-84-1 Technical
    • 180017 2-(5-Bromo-2-pyridylazo)-5-(diethylamino)phenol 97% 14337-53-2  
    • 18360 Bromosulfalein for liver diagnosis, for microscopy (Hist.) 71-67-0 Analytical, Microscopy
    • B8136 Bromosulfonazo III 16091-04-6 (free acid)  
    • 114413 Bromothymol Blue ACS reagent, Dye content 95 % 76-59-5 ACS reagent
    • B8630 Bromothymol Blue sodium salt powder 34722-90-2  
    • 114421 Bromothymol Blue sodium salt ACS reagent 34722-90-2 ACS reagent
    • 318752 Bromothymol Blue sodium salt solution 0.04 wt. % in H2O 34722-90-2  
    • 390216 2-Bromo-1,1,3-trimethoxypropane 95% 759-97-7  
    • 205478 Bromoxylenol Blue indicator grade, Dye content 95 % 40070-59-5 Analytical, Indicator
    • B0154   Butvar® B-98 63148-65-2  
    • 366196 N-Butylaniline 97% 1126-78-9  
    • 432938 5-tert-Butyl-1,3-diiminoisoindoline 98% 52319-97-8  
    • 425265 6-tert-Butyl-2,3-naphthalenedicarbonitrile 94% 32703-82-5  
    • 454648 4-tert-Butylphthalic anhydride 95% 32703-79-0  
    • 423122 4-tert-Butylphthalonitrile 98% 32703-80-3  
    • 292664 N-tert-Butyl-α-(2-sulfophenyl)nitrone sodium salt 95% 73475-11-3  
    • 429635 Butyraldehyde-2,4-dinitrophenylhydrazone environmental standard, 99% 1527-98-6 Analytical, Environmental, Standard
    • S0252 Sulfobromophthalein disodium salt hydrate used to study hepatocyte transport functions 123359-42-2