Reagents, B

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  • 2-Bromo-1,3-difluorobenzene, 98%

    Alfa Aesar

    Synonym(s): 1-Bromo-2,6-difluorobenzene, 2,6-Difluorobromobenzene Formula: C6H3BrF2 Formula weight: 192.99 Purity: 98% CAS Number: 64248-56-2 UN Number: UN1993 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2903.99 Hazard Statements: H226-H315-H319-H335 …

  • (^+)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, 98%

    Alfa Aesar

    Synonym(s): (+/-)-BINAP, (+/-)-(1,1'-Binaphthalene-2,2'-diyl)bis(diphenylphosphine) Formula: C44H32P2 Formula weight: 622.69 Purity: 98% CAS Number: 98327-87-8 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye…

  • Bismuth(III) nitrate oxide, Puratronic r, 99.999% (metals basis)

    Alfa Aesar

    Synonym(s): Bismuth oxynitrate Formula: BiONO3 Formula weight: 286.99 Purity: 99.999% (metals basis) CAS Number: 10361-46-3 UN Number: UN1477 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2834.29 Hazard Statements: H272-H315-H319-H335 May intensify fire;…

  • 1,4-Butanediol diglycidyl ether, 96%

    Alfa Aesar

    Synonym(s): Tetramethylene glycol diglycidyl ether Formula: C10H18O4 Formula weight: 202.25 Purity: 96% CAS Number: 2425-79-8 Harmonized Tariff Code:  2910.90 Hazard Statements: H312-H332-H315-H319-H317 Harmful in contact with skin. Harmful if inhaled. Causes skin irritation.…

  • Boric acid, 99+%

    Alfa Aesar

    Synonym(s): Boracic acid, Orthoboric acid Formula: BH3O3 Formula weight: 61.83 Purity: 99+% CAS Number: 10043-35-3 Harmonized Tariff Code:  2810.00 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary Statements: P201-P308+P313 Obtain special…

  • Basic Fuchsin

    Alfa Aesar

    Synonym(s): C.I. 42510, Fuchsin basic Formula: C20H20ClN3 Formula weight: 337.86 CAS Number: 632-99-5 Harmonized Tariff Code:  3204.13 Hazard Statements: H301-H351 Toxic if swallowed. Suspected of causing cancer. Precautionary Statements: P281-P301+P310-P308+P313-P321-P405-P501a…

  • Bis(cyclopentadienyl)magnesium, sublimed, 97%

    Alfa Aesar

    Formula: C10H10Mg Formula weight: 154.49 Purity: 97% CAS Number: 1284-72-6 UN Number: UN3391 Hazard Class: 4.2 Packing Group: I Harmonized Tariff Code:  2931.90 Hazard Statements: H250-H252-H315-H319-H335 Catches fire spontaneously if exposed to air. Self-heating in large…

  • 1-Bromopropane, 99%

    Alfa Aesar

    Synonym(s): n-Propyl bromide Formula: C3H7Br Formula weight: 123.00 Purity: 99% CAS Number: 106-94-5 UN Number: UN2344 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2903.39 Hazard Statements: H225-H360-H373-H315-H319-H335-H336 Highly flammable liquid and…

  • 2-Bromo-4,6-difluoroanisole, 97%

    Alfa Aesar

    Formula: C7H5BrF2O Formula weight: 223.02 Purity: 97% CAS Number: 202865-59-6 Harmonized Tariff Code:  2909.30 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: P280g-P305+P351+P338 Wear protective gloves. IF IN EYES:…

  • 4-Bromo-3,5-dimethylphenol, 99%

    Alfa Aesar

    Synonym(s): 4-Bromo-3,5-xylenol Formula: C8H9BrO Formula weight: 201.07 Purity: 99% CAS Number: 7463-51-6 Harmonized Tariff Code:  2908.19 Hazard Statements: H302-H312-H315-H319-H335 Harmful if swallowed. Harmful in contact with skin. Causes skin irritation. Causes serious eye…

  • (tert-Butoxycarbonylmethylene)triphenylphosphorane, 98%

    Alfa Aesar

    Synonym(s): tert-Butyl (triphenylphosphoranylidene)acetate, (Carbo-tert-butoxymethylene)triphenylphosphorane Formula: C24H25O2P Formula weight: 376.44 Purity: 98% CAS Number: 35000-38-5 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2931.90 …

  • Benzo[b]furan-2-boronic acid, 98%

    Alfa Aesar

    Formula: C8H7BO3 Formula weight: 161.95 Purity: 98% CAS Number: 98437-24-2 Harmonized Tariff Code:  2932.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • 3-Bromo-2-chloropyridine, 97%

    Alfa Aesar

    Formula: C5H3BrClN Formula weight: 192.44 Purity: 97% CAS Number: 52200-48-3 Harmonized Tariff Code:  2933.39 Hazard Statements: H301-H311-H332-H315-H319-H335 Toxic if swallowed. Toxic in contact with skin. Harmful if inhaled. Causes skin irritation. Causes serious eye irritation.…

  • 4-Bromo-2-fluorobenzoic acid, 98%

    Alfa Aesar

    Formula: C7H4BrFO2 Formula weight: 219.01 Purity: 98% CAS Number: 112704-79-7 Harmonized Tariff Code:  2916.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • 5-Bromothiophene-2-carboxaldehyde, 97%

    Alfa Aesar

    Formula: C5H3BrOS Formula weight: 191.05 Purity: 97% CAS Number: 4701-17-1 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Bradykinin (1-7)

    Alfa Aesar

    Synonym(s): Arg-Pro-Pro-Gly-Phe-Ser-Pro Formula: C35H52N10O9 Formula weight: 756.85 CAS Number: 23815-87-4 Harmonized Tariff Code:  2933.99

  • Borate, 0.5M buffer soln., pH 9.0

    Alfa Aesar

    CAS Number: 1330-43-4 Harmonized Tariff Code:  2840.19 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary Statements: P281-P201-P202-P308+P313-P405-P501a Use personal protective equipment as required. Obtain special instructions before use. Do not handle…

  • Brucine sulfate hydrate, 98% (dry wt.), water <13%

    Alfa Aesar

    Formula: C23H26N2O4 0.5H2SO4 xH2O Formula weight: 443.52(anhy) Purity: 98% (dry wt.), water CAS Number: 652154-10-4 UN Number: UN2811 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2939.99 Hazard Statements: H300-H330 Fatal if swallowed. Fatal if inhaled. …

  • 4-Bromo-3-nitroanisole, 96%

    Alfa Aesar

    Formula: C7H6BrNO3 Formula weight: 232.03 Purity: 96% CAS Number: 5344-78-5 Harmonized Tariff Code:  2909.30 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Bradykinin (1-6)

    Alfa Aesar

    Synonym(s): Arg-Pro-Pro-Gly-Phe-Ser Formula: C30H45N9O8 Formula weight: 659.73 CAS Number: 23815-88-5 Harmonized Tariff Code:  2933.99

  • Bis(4-chlorophenylthio)methane, 99%

    Alfa Aesar

    Formula: C13H10Cl2S2 Formula weight: 301.26 Purity: 99% CAS Number: 2393-97-7 Harmonized Tariff Code:  2930.90

  • 3-Bromopyridine, 98+%

    Alfa Aesar

    Formula: C5H4BrN Formula weight: 158.00 Purity: 98+% CAS Number: 626-55-1 UN Number: UN2810 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2933.39 Hazard Statements: H311-H227-H302-H332-H315-H319-H335 Toxic in contact with skin. Combustible liquid. Harmful…

  • 3-Bromo-5-nitrosalicylaldehyde, 98%

    Alfa Aesar

    Synonym(s): 3-Bromo-2-hydroxy-5-nitrobenzaldehyde Formula: C7H4BrNO4 Formula weight: 246.02 Purity: 98% CAS Number: 16789-84-7 Harmonized Tariff Code:  2912.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • BICINE, 99%

    Alfa Aesar

    Synonym(s): N,N-Bis(2-hydroxyethyl)glycine Formula: C6H13NO4 Formula weight: 163.17 Purity: 99% CAS Number: 150-25-4 Harmonized Tariff Code:  2922.50

  • Bexarotene, 99+%

    Alfa Aesar

    Synonym(s): LGD-1069, Targretin Formula: C24H28O2 Formula weight: 348.48 Purity: 99+% CAS Number: 153559-49-0 Harmonized Tariff Code:  2916.39 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • 2-n-Butylfuran, 98%

    Alfa Aesar

    Formula: C8H12O Formula weight: 124.18 Purity: 98% CAS Number: 4466-24-4 UN Number: UN1993 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2932.19 Hazard Statements: H226 Flammable liquid and vapour. Precautionary Statements: P261 Avoid breathing…

  • 2'-Bromo-2'-deoxyuridine, 98%

    Alfa Aesar

    Formula: C9H11BrN2O5 Formula weight: 307.10 Purity: 98% CAS Number: 72218-68-9 Harmonized Tariff Code:  2933.99

  • Bis(3-aminopropyl)phenylphosphine, packaged under Argon in resealable ChemSeal^t…

    Alfa Aesar

    Formula: (H2NC3H6)2P(C6H5) Formula weight: 224.29 CAS Number: 6775-01-5 UN Number: UN3267 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2931.90 Hazard Statements: H314-H335-H319 Causes severe skin burns and eye damage. May cause respiratory irritation. Causes…

  • 4-Benzyloxy-2-hydroxypyridine, 97%

    Alfa Aesar

    Synonym(s): 4-Benzyloxy-2-pyridone Formula: C12H11NO2 Formula weight: 201.22 Purity: 97% CAS Number: 53937-02-3 Harmonized Tariff Code:  2933.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Brilliant Crocein

    Alfa Aesar

    Synonym(s): C.I. 27290, Crocein Scarlet MOO Formula: C22H14N4Na2O7S2 Formula weight: 556.49 CAS Number: 5413-75-2 Harmonized Tariff Code:  2927.00

  • 1,7-Bis(tert-butoxycarbonylmethyl)-1,4,7,10-tetraazacyclododecane

    Alfa Aesar

    Synonym(s): Cyclen-1,7-diacetic acid di-tert-butyl ester, DO2AtBu Formula: C20H40N4O4 Formula weight: 400.56 CAS Number: 162148-48-3 Harmonized Tariff Code:  2933.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • Benzhydrylamine hydrochloride, 97%

    Alfa Aesar

    Synonym(s): Aminodiphenylmethane hydrochloride Formula: C13H13N HCl Formula weight: 219.72 Purity: 97% CAS Number: 5267-34-5 Harmonized Tariff Code:  2921.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

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