Reagents, B

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  • 2-Bromo-5-fluorobenzoic acid, 98+%

    Alfa Aesar

    Formula: C7H4BrFO2 Formula weight: 219.01 Purity: 98+% CAS Number: 394-28-5 Harmonized Tariff Code:  2916.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Bolton-Hunter Reagent

    Alfa Aesar

    Synonym(s): N-Succinimidyl-3-(4-hydroxyphenyl)propionate, Rudinger reagent Formula: C13H13NO5 Formula weight: 263.25 CAS Number: 34071-95-9 Harmonized Tariff Code:  2928.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • 2-Bromo-4-chlorotoluene, 98%

    Alfa Aesar

    Formula: C7H6BrCl Formula weight: 205.48 Purity: 98% CAS Number: 27139-97-5 Harmonized Tariff Code:  2903.99 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: P280-P305+P351+P338-P362-P321-P332+P313-P337+P313 Wear…

  • 4-tert-Butylbenzenesulfonyl chloride, 98%

    Alfa Aesar

    Formula: C10H13ClO2S Formula weight: 232.73 Purity: 98% CAS Number: 15084-51-2 UN Number: UN3261 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2904.90 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. …

  • Bis(2,2,6,6-tetramethyl-3,5-heptanedionato)lead(II)

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Synonym(s): Lead(II)-DPM, Pb(TMHD){2} Formula: C22H38O4Pb Formula weight: 573.75 CAS Number: …

  • 3-Bromo-5-iodopyridine, 95%

    Alfa Aesar

  • Bismuth, Oil based standard solution, Specpure r, Bi 5000µg/g

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • 3-(4-Bromobenzoyl)propionic acid, 98+%

    Alfa Aesar

    Formula: C10H9BrO3 Formula weight: 257.09 Purity: 98+% CAS Number: 6340-79-0 Harmonized Tariff Code:  2916.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • cis-(1S,2R)-(-)-2-Benzylaminocyclohexanemethanol, 98%

    Alfa Aesar

    Formula: C14H21NO Formula weight: 219.33 Purity: 98% CAS Number: 71581-93-6 Harmonized Tariff Code:  2922.19 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P280g-P305+P351+P338 …

  • 2-Benzyloxybenzaldehyde, 98%

    Alfa Aesar

    Formula: C14H12O2 Formula weight: 212.25 Purity: 98% CAS Number: 5896-17-3 Harmonized Tariff Code:  2912.49

  • BLOTTO in PBS, with 0.02% sodium azide

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Benzalkonium chloride, 50% w/w aq. soln.

    Alfa Aesar

    CAS Number: 63449-41-2 UN Number: UN3265 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  3402.12 Hazard Statements: H314-H302 Causes severe skin burns and eye damage. Harmful if swallowed. Precautionary Statements: …

  • Bismuth tungsten oxide, 99.9% (metals basis)

    Alfa Aesar

    Synonym(s): Bismuth tungstate Formula: Bi2(WO4)3 Formula weight: 1161.48 Purity: 99.9% (metals basis) CAS Number: 13595-87-4 Harmonized Tariff Code:  2841.80

  • Brooker's merocyanine dye

    Alfa Aesar

  • 3-Bromophenetole, 98%

    Alfa Aesar

    Synonym(s): 3-Bromoethoxybenzene, 3-Bromphenyl ethyl ether Formula: C8H9BrO Formula weight: 201.06 Purity: 98% CAS Number: 2655-84-7 Harmonized Tariff Code:  2909.30

  • 8-Bromo-2'-deoxyguanosine, 99%

    Alfa Aesar

    Formula: C10H12BrN5O4 Formula weight: 346.14 Purity: 99% CAS Number: 13389-03-2 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • 1-Boc-indoline-7-carboxylic acid, 97%

    Alfa Aesar

    Formula: C14H17NO4 Formula weight: 263.29 Purity: 97% CAS Number: 143262-20-8 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2924.29 Risk Phrases: 36/37/38-43-50 Irritating to eyes, respiratory system and skin. May cause sensitisation by skin…

  • Beryllium Ultrathin foil, 1 micron thick, 99.9% (metals basis)

    Alfa Aesar

    Purity: 99.9% (metals basis) CAS Number: 7440-41-7 Harmonized Tariff Code:  8112.19 Hazard Statements: H301-H330-H350-H372-H315-H319-H317-H335 Toxic if swallowed. Fatal if inhaled. May cause cancer. Causes damage to organs through prolonged or repeated exposure. Causes skin irritation.…

  • 1-Bromo-3,5-bis(trifluoromethyl)benzene, 98%

    Alfa Aesar

    Synonym(s): 3,5-Bis(trifluoromethyl)bromobenzene, 3,5-Bis(trifluoromethyl)bromobenzene Formula: C8H3BrF6 Formula weight: 293.01 Purity: 98% CAS Number: 328-70-1 Harmonized Tariff Code:  2903.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye…

  • Barium oxalate, Puratronic r, 99.999% (metals basis)

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Formula: BaC2O4 Formula weight: 225.36 Purity: 99.999% (metals basis) CAS Number: 516-02-9 …

  • 1-Benzyl-1,2,3-triazole-4,5-dicarboxylic acid, 98%

    Alfa Aesar

    Formula: C11H9N3O4 Formula weight: 247.21 Purity: 98% CAS Number: 73953-89-6 Harmonized Tariff Code:  2933.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • 2-Bromobenzonitrile, 99%

    Alfa Aesar

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Synonym(s): 2-Cyanobromobenzene Formula: C7H4BrN Formula weight: 182.03 Purity: 99% CAS…

  • 2-Butanone, 99%

    Alfa Aesar

    Synonym(s): Methyl ethyl ketone, MEK Formula: C4H8O Formula weight: 72.11 Purity: 99% CAS Number: 78-93-3 UN Number: UN1193 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2914.12 Hazard Statements: H225-H319-H336 Highly flammable liquid and vapour. Causes…

  • Benzylmagnesium chloride, 1-2M in THF

    Alfa Aesar

    Formula: C7H7ClMg Formula weight: 150.89 CAS Number: 6921-34-2 UN Number: UN2924 Hazard Class: 3 Packing Group: II

  • Benzo[c]cinnoline N-oxide, 95%

    Alfa Aesar

    Formula: C12H8N2O Formula weight: 196.21 Purity: 95% CAS Number: 6141-98-6 Harmonized Tariff Code:  2933.99

  • 4-(p-Tolyl)butyric acid, 97%

    Alfa Aesar

    Synonym(s): 4-(4-Methylphenyl)butyric acid Formula: C11H14O2 Formula weight: 178.23 Purity: 97% CAS Number: 4521-22-6 Harmonized Tariff Code:  2916.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • tert-Butyl alcohol, anhydrous, 99.5%

    Alfa Aesar

    Synonym(s): 2-Methyl-2-propanol, tert-Butanol Formula: C4H10O Formula weight: 74.12 Purity: 99.5% CAS Number: 75-65-0 UN Number: UN1120 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2905.14 Hazard Statements: H225-H332-H319-H335 Highly flammable liquid and…

  • 3-Bromocyclohexene, 95%, stab. with 300-1000ppm Propylene oxide

    Alfa Aesar

    Synonym(s): 2-Cyclohexenyl bromide Formula: C6H9Br Formula weight: 161.05 Purity: 95%, stab. with 300-1000ppm Propylene oxide CAS Number: 1521-51-3 UN Number: UN1993 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2903.89 Hazard Statements: …

  • Burgess Reagent, 96%

    Alfa Aesar

    Synonym(s): (Methoxycarbonylsulfamoyl)triethylammonium hydroxide, inner salt, Methyl N-(triethylammoniosulfonyl)carbamate Formula: C8H18N2O4S Formula weight: 238.30 Purity: 96% CAS Number: 29684-56-8 Harmonized Tariff Code:  2930.90 Hazard Statements: H315-H319-H335 Causes skin…

  • 4-Bromothiophene-2-carboxaldehyde, 96%

    Alfa Aesar

    Formula: C5H3BrOS Formula weight: 191.05 Purity: 96% CAS Number: 18791-75-8 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Bis(pinacolato)diboron, 98+%

    Alfa Aesar

    Synonym(s): 4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi-1,3,2-dioxaborolane Formula: C12H24B2O4 Formula weight: 253.94 Purity: 98+% CAS Number: 73183-34-3 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May…

  • Bis(phenylthio)methane, 98+%

    Alfa Aesar

    Synonym(s): Formaldehyde diphenyl mercapatal Formula: C13H12S2 Formula weight: 232.36 Purity: 98+% CAS Number: 3561-67-9 Harmonized Tariff Code:  2930.90

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