Alfa Aesar

Reagents, B, Alfa Aesar

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  • Bis(2-ethylhexyl) phthalate, 98+%

    Alfa Aesar

    Synonym(s): Dioctyl phthalate, Phthalic acid bis(2-ethylhexyl)ester Formula: C24H38O4 Formula weight: 390.56 Purity: 98+% CAS Number: 117-81-7 Harmonized Tariff Code:  2917.32 Hazard Statements: H360 May damage fertility or the unborn child. Precautionary Statements: …

  • 4-Bromo-o-xylene, 97%

    Alfa Aesar

    Synonym(s): 4-Bromo-1,2-dimethylbenzene, 3,4-Dimethylbromobenzene Formula: C8H9Br Formula weight: 185.07 Purity: 97% CAS Number: 583-71-1 Harmonized Tariff Code:  2903.99 Hazard Statements: H315-H319-H335-H227 Causes skin irritation. Causes serious eye irritation. May cause…

  • Bromine liquid, ACS, 99.5%

    Alfa Aesar

    Purity: 99.5% CAS Number: 7726-95-6 UN Number: UN1744 Hazard Class: 8 Packing Group: I Harmonized Tariff Code:  2801.30 Hazard Statements: H330-H314 Fatal if inhaled. Causes severe skin burns and eye damage. Precautionary Statements: …

  • Barbituric acid, 99%

    Alfa Aesar

    Synonym(s): Malonylurea, 2,4,6-Trihydroxypyrimidine Formula: C4H4N2O3 Formula weight: 128.09 Purity: 99% CAS Number: 67-52-7 Harmonized Tariff Code:  2933.52

  • Benzene, HPLC Grade, 99.5%

    Alfa Aesar

    Formula: C6H6 Formula weight: 78.11 Purity: 99.5% CAS Number: 71-43-2 UN Number: UN1114 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2902.20 Hazard Statements: H225-H340-H350-H372-H304-H315-H319 Highly flammable liquid and vapour. May cause genetic defects.…

  • 2-Benzothiazoleacetonitrile, 98%

    Alfa Aesar

    Synonym(s): 2-Cyanomethyl-1,3-benzothiazole, 2-(Cyanomethyl)benzothiazole Formula: C9H6N2S Formula weight: 174.23 Purity: 98% CAS Number: 56278-50-3 UN Number: UN3439 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2934.20 Hazard Statements: …

  • Bis(4-fluorophenyl) sulfone, 98+%

    Alfa Aesar

    Synonym(s): 4,4'-Difluorodiphenyl sulfone, 4-Fluorophenyl sulfone Formula: C12H8F2O2S Formula weight: 254.25 Purity: 98+% CAS Number: 383-29-9 Harmonized Tariff Code:  2930.90

  • 1,3-Bis(aminopropyl)tetramethyldisiloxane, 97%

    Alfa Aesar

    Formula: C10H28N2OSi2 Formula weight: 248.52 Purity: 97% CAS Number: 2469-55-8 UN Number: UN2735 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2931.90 Hazard Statements: H314-H227 Causes severe skin burns and eye damage. Combustible liquid. Precautionary…

  • Bromophenol Blue sodium salt

    Alfa Aesar

    Synonym(s): Bromphenol Blue, water soluble Formula: C19H9Br4NaO5S Formula weight: 691.96 CAS Number: 34725-61-6 Harmonized Tariff Code:  2934.99 Safety Phrases: 22-24/25 Do not breathe dust. Avoid contact with skin and eyes.

  • Bromobenzene, 99%

    Alfa Aesar

    Formula: C6H5Br Formula weight: 157.02 Purity: 99% CAS Number: 108-86-1 UN Number: UN2514 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2903.99 Hazard Statements: H226-H315 Flammable liquid and vapour. Causes skin irritation. Precautionary Statements: …

  • 4-Bromoaniline, 98+%

    Alfa Aesar

    Formula: C6H6BrN Formula weight: 172.03 Purity: 98+% CAS Number: 106-40-1 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2921.42 Hazard Statements: H311-H373-H302-H332-H315-H319 Toxic in contact with skin. May cause damage to organs through…

  • Bathocuproin sulfonate disodium salt hydrate, 97%

    Alfa Aesar

    Synonym(s): Bathocuproin sulfonate, 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline disulfonic acid disodium salt Formula: C26H18N2Na2O6S2 xH2O Formula weight: 564.55(anhy) Purity: 97% CAS Number: 52698-84-7 Harmonized Tariff Code:  2933.99

  • n-Butyl acetate, Semiconductor Grade, 99% min

    Alfa Aesar

    Formula: C6H12O2 Formula weight: 116.16 Purity: 99% min CAS Number: 123-86-4 UN Number: UN1123 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2915.33 Hazard Statements: H226-H336 Flammable liquid and vapour. May cause drowsiness or dizziness. Precautionary…

  • tert-Butyl acrylate, 99%, stab. with 15ppm 4-methoxyphenol

    Alfa Aesar

    Synonym(s): Acrylic acid tert-butyl ester Formula: C7H12O2 Formula weight: 128.17 Purity: 99%, stab. with 15ppm 4-methoxyphenol CAS Number: 1663-39-4 UN Number: UN3272 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2916.12 Hazard Statements: …

  • Benzohydroxamic acid, 99%

    Alfa Aesar

    Synonym(s): Benzhydroxamic acid, N-Benzoylhydroxylamine Formula: C7H7NO2 Formula weight: 137.14 Purity: 99% CAS Number: 495-18-1 Harmonized Tariff Code:  2924.29 Hazard Statements: H341-H315-H319-H335 Suspected of causing genetic defects. Causes skin irritation. Causes serious…

  • Bisphenol A, 97+%

    Alfa Aesar

    Synonym(s): 2,2-Bis(4-hydroxyphenyl)propane, 4,4'-Isopropylidenediphenol Formula: C15H16O2 Formula weight: 228.29 Purity: 97+% CAS Number: 80-05-7 Harmonized Tariff Code:  2907.23 Hazard Statements: H318-H361-H317-H335 Causes serious eye damage. Suspected of damaging fertility…

  • Bromocresol Green, ACS

    Alfa Aesar

    Formula: C21H14Br4O5S Formula weight: 698.04 CAS Number: 76-60-8 Harmonized Tariff Code:  2934.99

  • Barium sulfate, Puratronic r, 99.998% (metals basis)

    Alfa Aesar

    Formula: BaO4S Formula weight: 233.40 Purity: 99.998% (metals basis) CAS Number: 7727-43-7 Harmonized Tariff Code:  2833.27

  • Bismuth(III) oxide, typically 99.99% (metals basis)

    Alfa Aesar

    Formula: Bi2O3 Formula weight: 465.96 Purity: typically 99.99% (metals basis) CAS Number: 1304-76-3 Harmonized Tariff Code:  2825.90

  • 2,3-Butanedione, 99%

    Alfa Aesar

    Synonym(s): Biacetyl, Diacetyl Formula: C4H6O2 Formula weight: 86.09 Purity: 99% CAS Number: 431-03-8 UN Number: UN2346 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2914.19 Hazard Statements: H225-H302-H332-H315-H319 Highly flammable liquid and vapour.…

  • Benzil, 98%

    Alfa Aesar

    Synonym(s): Dibenzoyl Formula: C14H10O2 Formula weight: 210.23 Purity: 98% CAS Number: 134-81-6 Harmonized Tariff Code:  2914.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements:…

  • Barium chloride dihydrate, ACS

    Alfa Aesar

    Formula: BaCl2 2H2O Formula weight: 244.28 (208.25anhy) CAS Number: 10326-27-9 UN Number: UN1564 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2827.39 Hazard Statements: H301-H331 Toxic if swallowed. Toxic if inhaled. Precautionary Statements: …

  • 1-Bromoperfluorohexane, 98%

    Alfa Aesar

    Synonym(s): Bromotridecafluorohexane, Perfluorohexyl bromide Formula: C6BrF13 Formula weight: 398.96 Purity: 98% CAS Number: 335-56-8 Harmonized Tariff Code:  2903.78 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • tert-Butyl 2,2,2-trichloroacetimidate, 97%

    Alfa Aesar

    Synonym(s): 2,2,2-Trichloroacetimidic acid tert-butyl ester Formula: C6H10Cl3NO Formula weight: 218.51 Purity: 97% CAS Number: 98946-18-0 UN Number: UN1993 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2925.29 Hazard Statements: H226-H315-H319-H335 …

  • 2-Butanone, ACS, 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…

  • Buffer solution, pH 1.68 (^+0.01 @ 25°C), No Color, Specpure r, NIST Traceable

    Alfa Aesar

    Harmonized Tariff Code:  3822.00 Hazard Statements: H318-H315 Causes serious eye damage. Causes skin irritation. Precautionary Statements: P280-P305+P351+P338-P310-P362-P321-P332+P313 Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously…

  • sec-Butylzinc bromide, 0.5M in THF, packaged under Argon in resealable ChemSeal…

    Alfa Aesar

    Included Fees: C852C27 has a Can and Barrier Bag fee included in the price. C852C28 has a Can and Barrier Bag fee included in the price. To see the value of these fees, download our Fee List.

  • 4,4'-Bipyridine, 98%

    Alfa Aesar

    Synonym(s): 4,4'-Bipyridyl, 4,4'-Dipyridyl Formula: C10H8N2 Formula weight: 156.19 Purity: 98% CAS Number: 553-26-4 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2933.39 Hazard Statements: H301-H311 Toxic if swallowed. Toxic in contact…

  • Boric acid, 98%

    Alfa Aesar

    Synonym(s): Boracic acid, Orthoboric acid Formula: BH3O3 Formula weight: 61.83 Purity: 98% 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…

  • 2,2'-Biquinoline, 98+%

    Alfa Aesar

    Synonym(s): Cuproin, 2,2'-Diquinolyl Formula: C18H12N2 Formula weight: 256.31 Purity: 98+% CAS Number: 119-91-5 Harmonized Tariff Code:  2933.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Bromothymol Blue

    Alfa Aesar

    Synonym(s): Bromthymol Blue Formula: C27H28Br2O5S Formula weight: 624.39 CAS Number: 76-59-5 Harmonized Tariff Code:  2914.70

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