BIS-ACRYLAMIDE, 2% Solution Ultra Pure ACR007 4°C A2 % solution (w/v) of Ultra Pure Bis-Acrylamide In deionized water.

BIS-ACRYLAMIDE, Ultra Pure Suitable for gel electrophoresis CAS number: [110-26-9] C7H10O2N2 MW: 154.17 Purity: ≥ 99% A290 (1%, H2O): < 0.2% Conductivity (2%, H2O): < 10μmhos Acrylic Acid: < 0.001% DNase, RNase, Protease activity: none detected

BIS-TRIS Propane (1,3-Bis[tris(hydroxymethyl)methylamino]propane) CAS number: [64431-96-5] C11H26N2O6 MW: 282.3 Purity: ≥ 98% pKa: 6.8 ± 0.1 Useful pH range: 6.3 - 9.5 Solubility(1M water): clear/colorless

BIS-TRIS, Free Base [Bis (2-Hydroxyethyl)amino-tris(hydroxymethyl)methane] Important buffer for protein and nucleic acid systems. CAS number: [6976-37-0] Purity: ≥ 98% C8H19NO5 MW: 209.2 pKa (25 °C): 6.35 - 6.65 Useful pH range: 5.8 - 7.2

BIS-TRIS, Free Base Molecular Biology Grade, Purity: ≥99% Bis (2-Hydroxyethyl)amino-tris(hydroxymethyl)methane]. Important buffer for protein and nucleic acid systems. Suitable for electrophoresis and cell culture. CAS number: [6976-37-0] C8H19NO5 MW: 209.2 pKa (25 °C): 6.35 - 6.65 Useful pH range: 5.8 - 7.2 Solubility (1M): clear/colorless pH, 1M water: 9.0 - 11.0 A280, 1M water: < 0.40 Heavy metals (as Pb): > 0.0005%

BLASTICIDIN S, Hydrochloride Antimicrobial agent from Streptomyces griseochromogenes. Inhibits translation in prokaryotic and eukaryotic cells. Used as a selection agent.   -20 °C   CAS number: [3513-03-9]   C17H26N8O5.HCl MW 458.9 Melting point: 235-236 °C Solubility: water, dilute acetic acid

BLASTICIDIN S, Solution, Sterile-filtered In 1M HEPES buffer. Sterile-filtered. Concentration : 10 mg/ml, 20 mg per vial.

BLEOMYCIN SULFATE From Streptomyces verticillus. Inhibits DNA synthesis. Causes starnd scission. Used as a selection agent. Mixture of bleomycin sulfate salts 4 °C CAS number: [9041-93-4] Solubility (2% water): clear/colorless Activity: 15 units/10 mg

5-BROMO-3-INDOLYL ß-D GALACTOPYRANOSIDE (BLUO-GAL) XGB001 -20 °C An alternative to X-Gal producing a darker blue color. CAS number: [97753-82-7] C14H16BrNO6 MW: 374.2 Purity: > 98%

BORIC ACID, ACS, Reagent Grade BOR002 CAS number: [10043-35-3] H3BO3 MW: 61.83 Solubility (water): 50 g/L Melting point: 185 °C Purity: > 99.5% Insolubles: < 0.005%

BORIC ACID, Biotechnology Grade CAS number: [10043-35-3] H3BO3 MW: 61.83 Solubility (water): 50 g/l Melting point: 185 °C Purity: > 99.5% Insolubles: < 0.005% Heavy metals (as Pb): < 0.0005% Solubility (1M water): clear/colorless DNase, RNase, Protease Activity: none detected

BRADFORD REAGENT, Protein assay BRA222 4 °C Ready-to-use. 1X concentration

BREFELDIN A BRE222 CAS number: [20350-15-6] (Penicillium brefeldianum) Inhibitor of intracellular protein transport and protein secretion.

BRILLIANT GREEN, Certifiable Grade BRG001 CAS number: [633-03-4] Malachite Green G C27H34N2O4S MW: 482.6 Dye content: ≥ 85%

BROMOCRESOL GREEN Sodium Salt, ACS Grade CAS number: [62625-32-5] C21H14BrO5S.Na MW: 720.06

BROMOPHENOL BLUE BRO222 CAS number: [115-39-9] Free acid Sultone Form, ACS Grade Suitable for gel electrophoresis. C19H10Br4O5S MW: 669.96

BROMOPHENOL BLUE Sodium Salt, ACS Grade Suitable for gel electrophoresis. CAS number: [62625-28-9] C19H9Br4O5S.Na MW: 691.94 Water soluble

BROMOTHYMOL BLUE, Sodium Salt BRO555 CAS number: [34722-90-2] C27H27Br2NaO5S MW: 646.37

CALCIUM CARBONATE, Anhydrous ACS, Reagent Grade CAS number: [471-34-1] CaCO3 MW: 100.09 Purity: ≥ 99.0%

CALCIUM CHLORIDE, 1.0 M sterile solution A sterile reagent for the preparation of competent cells for transformation. Autoclave sterile.