Alfa Aesar

Reagents, B, Alfa Aesar

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  • Benzethonium chloride, 97%

    Alfa Aesar

    Synonym(s): Hyamine 1622, Phemerol chloride Formula: C27H42ClNO2 Formula weight: 448.10 Purity: 97% CAS Number: 121-54-0 UN Number: UN1759 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2923.90 Hazard Statements: H301-H314-H318 Toxic if swallowed. Causes…

  • tert-Butyl alcohol, ACS, 99+%

    Alfa Aesar

    Synonym(s): 2-Methyl-2-propanol, tert-Butanol Formula: C4H10O Formula weight: 74.12 Purity: 99+% 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…

  • Boron trifluoride-dimethanol complex, 50-52% w/w boron trifluoride

    Alfa Aesar

    Formula: BF3 2CH3OH Formula weight: 131.89 CAS Number: 2802-68-8 UN Number: UN2922 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2942.00 Hazard Statements: H300-H310-H330-H314-H318-H227 Fatal if swallowed. Fatal in contact with skin. Fatal if inhaled. Causes…

  • Buffer solution, pH 2.00 (^+0.01 @ 25^oC), 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…

  • 2,2'-Bipyridine, 99+%

    Alfa Aesar

    Synonym(s): 2,2'-Bipyridyl, 2,2'-Dipyridyl Formula: C10H8N2 Formula weight: 156.19 Purity: 99+% CAS Number: 366-18-7 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…

  • Barium nitrate, ACS, 99+%

    Alfa Aesar

    Formula: Ba(NO3)2 Formula weight: 261.35 Purity: 99+% CAS Number: 10022-31-8 UN Number: UN1446 Hazard Class: 5.1 Packing Group: II Harmonized Tariff Code:  2834.29 Hazard Statements: H272-H302-H332 May intensify fire; oxidizer. Harmful if swallowed. Harmful if inhaled. …

  • Bromothymol Blue

    Alfa Aesar

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

  • Bromoform, 97%, stab. with ca 3% ethanol

    Alfa Aesar

    Synonym(s): Tribromomethane Formula: CHBr3 Formula weight: 252.73 Purity: 97%, stab. with ca 3% ethanol CAS Number: 75-25-2 UN Number: UN2515 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2903.39 Hazard Statements: H331-H351-H302-H315-H319 Toxic if…

  • Bromophenol Blue, ACS

    Alfa Aesar

    Formula: C19H10Br4O5S Formula weight: 669.98 CAS Number: 115-39-9 Harmonized Tariff Code:  2934.99

  • Butyric acid, 99+%

    Alfa Aesar

    Formula: C4H8O2 Formula weight: 88.11 Purity: 99+% CAS Number: 107-92-6 UN Number: UN2820 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2915.60 Hazard Statements: H311-H314-H318-H227 Toxic in contact with skin. Causes severe skin burns and eye damage. Causes…

  • 4-tert-Butyl-2,6-dinitrophenol, 97%

    Alfa Aesar

    Formula: C10H12N2O5 Formula weight: 240.22 Purity: 97% CAS Number: 4097-49-8 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2908.99 Hazard Statements: H331-H302-H312-H315-H319 Toxic if inhaled. Harmful if swallowed. Harmful in contact with…

  • Bis(cyclohexanone) oxaldihydrazone, 98%

    Alfa Aesar

    Synonym(s): Oxalic acid bis(cyclohexylidenehydrazide), Cuprizon I Formula: C14H22N4O2 Formula weight: 278.36 Purity: 98% CAS Number: 370-81-0 Harmonized Tariff Code:  2928.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • 1-Benzylpiperidine-4-carboxaldehyde, 95%

    Alfa Aesar

    Formula: C13H17NO Formula weight: 203.28 Purity: 95% CAS Number: 22065-85-6 Harmonized Tariff Code:  2933.39 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: P280-P305+P351+P338-P362-P321-P332+P313-P337+P313 Wear…

  • Bismuth powder, -200 mesh, 99.999% (metals basis)

    Alfa Aesar

    Purity: 99.999% (metals basis) CAS Number: 7440-69-9 UN Number: UN3089 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  8106.00 Hazard Statements: H228 Flammable solid. Precautionary Statements: P210-P280-P240-P241-P370+P378a Keep away from heat/sparks/open…

  • Bismuth(III) tert-pentyloxide, 97+%

    Alfa Aesar

    Synonym(s): Bismuth(III) tert-amylate, Bismuth(III) tert-pentoxide Formula: C15H33BiO3 Formula weight: 470.41 Purity: 97+% CAS Number: 124687-44-1 UN Number: UN3181 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  2905.19 Hazard Statements: …

  • 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;…

  • Bumetanide, 98+%

    Alfa Aesar

    Synonym(s): 3-(Aminosulfonyl)-5-(butylamino)-4-phenoxybenzoic acid Formula: C17H20N2O5S Formula weight: 364.40 Purity: 98+% CAS Number: 28395-03-1 Harmonized Tariff Code:  2935.00

  • Bentonite, sodium form

    Alfa Aesar

    Synonym(s): Sodium bentonite CAS Number: 1302-78-9 Harmonized Tariff Code:  2508.10 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid…

  • 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…

  • 1,4-Butanediol, 99%

    Alfa Aesar

    Synonym(s): 1,4-Butylene glycol, Tetramethylene glycol Formula: HO(CH2)4OH Formula weight: 90.12 Purity: 99% CAS Number: 110-63-4 Harmonized Tariff Code:  2905.39 Hazard Statements: H302 Harmful if swallowed. Precautionary Statements: P264-P270-P301+P312-P330-P501a Wash…

  • Brefeldin A, 99%

    Alfa Aesar

    Formula: C16H24O4 Formula weight: 280.36 Purity: 99% CAS Number: 20350-15-6 Harmonized Tariff Code:  2941.90 Hazard Statements: H302 Harmful if swallowed. Precautionary Statements: P264-P270-P301+P312-P330-P501a Wash thoroughly after handling. Do not eat, drink or smoke when…

  • Bismuth powder, -100 mesh, 99.5% (metals basis)

    Alfa Aesar

    Purity: 99.5% (metals basis) CAS Number: 7440-69-9 UN Number: UN3089 Hazard Class: 4.1 Packing Group: III Harmonized Tariff Code:  8106.00 Hazard Statements: H228 Flammable solid. Precautionary Statements: P210-P280-P240-P241-P370+P378a Keep away from heat/sparks/open…

  • Borane-dimethylamine complex, 97%

    Alfa Aesar

    Synonym(s): Dimethylamine borane Formula: BH3 NH(CH3)2 Formula weight: 58.92 Purity: 97% CAS Number: 74-94-2 UN Number: UN2925 Hazard Class: 4.1 Packing Group: II Harmonized Tariff Code:  2942.00 Hazard Statements: H228-H301-H310-H330-H314-H318 Flammable solid. Toxic if…

  • tert-Butyl alcohol, 99%

    Alfa Aesar

    Synonym(s): tert-Butanol, 2-Methyl-2-propanol Formula: (CH3)3COH Formula weight: 74.12 Purity: 99% 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…

  • Benzyl alcohol, 99%

    Alfa Aesar

    Formula: C7H8O Formula weight: 108.14 Purity: 99% CAS Number: 100-51-6 Harmonized Tariff Code:  2906.21 Hazard Statements: H302-H332 Harmful if swallowed. Harmful if inhaled. Precautionary Statements: P261-P264-P304+P340-P301+P312-P312-P501a Avoid breathing…

  • 4-Bromomethyl-3-nitrobenzoic acid, 97%

    Alfa Aesar

    Synonym(s): alpha-Bromo-3-nitro-p-toluic acid Formula: C8H6BrNO4 Formula weight: 260.05 Purity: 97% CAS Number: 55715-03-2 UN Number: UN3261 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2916.39 Hazard Statements: H314-H318 Causes severe skin burns and eye…

  • Bromopentamethylbenzene, 98+%

    Alfa Aesar

    Synonym(s): Pentamethylbromobenzene Formula: C11H15Br Formula weight: 227.15 Purity: 98+% CAS Number: 5153-40-2 Harmonized Tariff Code:  2903.99

  • Bispyrazolone, 98+%

    Alfa Aesar

    Synonym(s): 3,3'-Dimethyl-1,1'-diphenyl-(4,4'-bi-2-pyrazoline)-5,5'-dione Formula: C20H18N4O2 Formula weight: 346.39 Purity: 98+% CAS Number: 7477-67-0 Harmonized Tariff Code:  2933.19 Hazard Statements: H317 May cause an allergic skin reaction. Precautionary Statements: …

  • n-Butyl acetate, 99+%

    Alfa Aesar

    Synonym(s): Acetic acid n-butyl ester Formula: C6H12O2 Formula weight: 116.16 Purity: 99+% 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…

  • 1-Butanol, ACS, 99.4+%

    Alfa Aesar

    Synonym(s): n-Butyl alcohol Formula: CH3(CH2)3OH Formula weight: 74.12 Purity: 99.4+% CAS Number: 71-36-3 UN Number: UN1120 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2905.13 Hazard Statements: H318-H226-H302-H335-H336-H315 Causes serious eye damage.…

  • Benzoic acid, 99%

    Alfa Aesar

    Formula: C7H6O2 Formula weight: 122.12 Purity: 99% CAS Number: 65-85-0 Harmonized Tariff Code:  2916.31 Hazard Statements: H318-H302-H335 Causes serious eye damage. Harmful if swallowed. May cause respiratory irritation. Precautionary Statements: P280f-P305+P351+P338 Wear…

  • 1-Bromo-3,3,4,4,4-pentafluoro-2-butanone, 97%

    Alfa Aesar

    Formula: C4H2BrF5O Formula weight: 240.96 Purity: 97% CAS Number: 92737-01-4 UN Number: UN3265 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2914.70 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. …

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