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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  
47860   Basic Fuchsin for microscopy (Bact., Bot., Hist.), indicator (pH 1.0-3.1) 58969-01-0  
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 ≥98.0% (N) 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 contains 100 ppm MEHQ as stabilizer, 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  
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
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
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 ≥50 % 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 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  
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  
S0252 Sulfobromophthalein disodium salt hydrate used to study hepatocyte transport functions 123359-42-2