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  • 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…

  • Bromocresol Green

    Alfa Aesar

    Synonym(s): Bromcresol Green CAS Number: 76-60-8 MDL: MFCD00005874 EINECS: 200-972-8 Formula: C21H14Br4O5S Formula Weight: 698.02 Melting Point: ca 225° dec.. Notes Transition interval: pH 3.8 (yellow) to…

  • 3-(Benzylamino)propylamine, 95%

    Alfa Aesar

  • 2-n-Butoxyethanol, 99%

    Alfa Aesar

    Synonym(s): Butyl Cellosolve, Ethylene glycol mono-n-butyl ether Formula: C6H14O2 Formula weight: 118.18 Purity: 99% CAS Number: 111-76-2 UN Number: UN2810 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2909.43 Hazard Statements: …

  • 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…

  • 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…

  • Bromine liquid, 99.8%

    Alfa Aesar

    Purity: 99.8% 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: …

  • Barium chloride dihydrate, 99+%

    Alfa Aesar

    Formula: BaCl2 2H2O Formula weight: 244.28 (208.25anhy) Purity: 99+% 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…

  • Butyronitrile, 99%

    Alfa Aesar

    Synonym(s): n-Propyl cyanide Formula: C4H7N Formula weight: 69.11 Purity: 99% CAS Number: 109-74-0 UN Number: UN2411 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2926.90 Hazard Statements: H225-H301-H311-H331 Highly flammable liquid and vapour. Toxic if…

  • 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…

  • 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: …

  • 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. …

  • Brucine sulfate heptahydrate, ACS

    Alfa Aesar

    Formula: C11H6N2O2 Formula weight: 198.18 Purity: 97% UN Number: UN3439 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2933.39 Risk Phrases: 20/21/22-36/37/38 Harmful by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system…

  • 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…

  • Benzoic acid, ACS, 99.5% min

    Alfa Aesar

    Formula: C7H6O2 Formula weight: 122.12 Purity: 99.5% min 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-Butanol, 99%

    Alfa Aesar

    Synonym(s): n-Butyl alcohol Formula: CH3(CH2)3OH Formula weight: 74.12 Purity: 99% 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.…

  • Benzydamine hydrochloride

    Alfa Aesar

    Formula: C19H23N3O HCl Formula weight: 345.87 CAS Number: 132-69-4 Harmonized Tariff Code:  2933.99 Hazard Statements: H311-H302-H332-H319 Toxic in contact with skin. Harmful if swallowed. Harmful if inhaled. Causes serious eye irritation. Precautionary Statements: …

  • Bromine liquid, 99.998% (metals basis)

    Alfa Aesar

    Purity: 99.998% (metals basis) 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: …

  • Boric acid, ACS, 99.5% min

    Alfa Aesar

    Synonym(s): Boracic acid, Orthoboric acid Formula: BH3O3 Formula weight: 61.83 Purity: 99.5% min 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…

  • Bromocresol Green sodium salt, ACS

    Alfa Aesar

    Synonym(s): Bromocresol Green, water soluble Formula: C21H13Br4NaO5S Formula weight: 720.02 CAS Number: 62625-32-5 Harmonized Tariff Code:  2914.70

  • Brucine

    Alfa Aesar

    Synonym(s): 10,11-Dimethoxystrychnine Formula: C23H26N2O4 Formula weight: 394.47 CAS Number: 357-57-3 UN Number: UN1570 Hazard Class: 6.1 Packing Group: I Harmonized Tariff Code:  2939.99 Hazard Statements: H300-H330 Fatal if swallowed. Fatal if inhaled. Precautionary…

  • 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…

  • 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

  • Benzhydrylamine, 97%

    Alfa Aesar

    Synonym(s): Aminodiphenylmethane Formula: C13H13N Formula weight: 183.25 Purity: 97% CAS Number: 91-00-9 UN Number: UN2735 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2921.49 Hazard Statements: H301-H314-H318 Toxic if swallowed. Causes severe skin burns…

  • 1-Boc-piperazine, 99%

    Alfa Aesar

    Synonym(s): 1-(tert-Butoxycarbonyl)piperazine, tert-Butyl 1-piperazinecarboxylate Formula: C9H18N2O2 Formula weight: 186.26 Purity: 99% CAS Number: 57260-71-6 UN Number: UN0 Harmonized Tariff Code:  2933.59 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes…

  • Benzene, anhydrous, 99.8%, packaged under Argon in resealable ChemSeal^t bottles

    Alfa Aesar

    Formula: C6H6 Formula weight: 78.11 Purity: 99.8%, packaged under Argon in resealable ChemSeal^t bottles 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…

  • Boron nitride

    Alfa Aesar

    Formula: BN (cubic) Formula weight: 24.82 CAS Number: 10043-11-5 Harmonized Tariff Code:  2850.00 Hazard Statements: H319-H335 Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing…

  • Boron nitride

    Alfa Aesar

    Formula: BN (cubic) Formula weight: 24.82 CAS Number: 10043-11-5 Harmonized Tariff Code:  2850.00 Hazard Statements: H319-H335 Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: P261-P280-P305+P351+P338-P304+P340-P405-P501a Avoid breathing…

  • Bis(cyclopentadienyl)zirconium dichloride

    Alfa Aesar

    Synonym(s): Zirconocene dichloride Formula: C10H10Cl2Zr Formula weight: 292.32 CAS Number: 1291-32-3 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • tert-Butylamine, 98%

    Alfa Aesar

    Synonym(s): 2-Amino-2-methylpropane Formula: (CH3)3CNH2 Formula weight: 73.14 Purity: 98% CAS Number: 75-64-9 UN Number: UN2733 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2921.19 Hazard Statements: H225-H300-H314-H318-H332 Highly flammable liquid and…

  • Bismuth, AAS standard solution, Specpure r, Bi 1000µg/ml

    Alfa Aesar

    Formula: Bi in 5 HNO3 UN Number: UN3264 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  3822.00 Hazard Statements: H314 Causes severe skin burns and eye damage. Precautionary Statements: P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a Do not breathe…

  • 1,3-Bis(4-piperidinyl)propane, 97+%

    Alfa Aesar

    Synonym(s): 4,4'-(1,3-Propanediyl)bispiperidine, 4,4'-Trimethylenedipiperidine Formula: C13H26N2 Formula weight: 210.36 Purity: 97+% CAS Number: 16898-52-5 Harmonized Tariff Code:  2933.39 Hazard Statements: H301-H318-H315-H335 Toxic if swallowed. Causes serious eye damage.…

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