Alfa Aesar

Reagents, B, Alfa Aesar

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  • 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: …

  • Buffer solution, pH 4.01 (^+0.01 @ 25^oC), No Color, Specpure r, NIST Traceable

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Benzoyl chloride, 99+%

    Alfa Aesar

    Formula: C7H5ClO Formula weight: 140.57 Purity: 99+% CAS Number: 98-88-4 UN Number: UN1736 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2916.32 Hazard Statements: H311-H314-H318-H227-H302-H332-H317 Toxic in contact with skin. Causes severe skin burns and eye…

  • 4-Benzyloxy-2-fluorobenzeneboronic acid, 96%

    Alfa Aesar

    Synonym(s): 4-Benzyloxy-2-fluorophenylboronic acid Formula: C13H12BFO3 Formula weight: 246.04 Purity: 96% CAS Number: 166744-78-1 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • 1-Bromo-2,3,5-trichlorobenzene, 98%

    Alfa Aesar

    Synonym(s): 2,3,5-Trichlorobromobenzene Formula: C6H2BrCl3 Formula weight: 260.34 Purity: 98% CAS Number: 81067-38-1 Harmonized Tariff Code:  2903.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • Bismuth needles, 1-5cm (0.4-2in) long, 99.998% (metals basis)

    Alfa Aesar

    Purity: 99.998% (metals basis) CAS Number: 7440-69-9 Harmonized Tariff Code:  8106.00

  • 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…

  • 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…

  • n-Butyl acetate, HPLC Grade, 99.5+%

    Alfa Aesar

    Formula: C6H12O2 Formula weight: 116.16 Purity: 99.5+% 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…

  • 4-Bromo-2-fluorobenzenesulfonyl chloride, 98%

    Alfa Aesar

    Formula: C6H3BrClFO2S Formula weight: 273.51 Purity: 98% CAS Number: 216159-03-4 UN Number: UN3261 Hazard Class: 8 Packing Group: II Harmonized Tariff Code:  2904.10 Hazard Statements: H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage. …

  • 1-(2-Bromoethyl)-3-(trifluoromethyl)benzene, 95%

    Alfa Aesar

    Synonym(s): 3-(Trifluoromethyl)phenylethyl bromide Formula: C9H8BrF3 Formula weight: 253.06 Purity: 95% CAS Number: 1997-80-4 UN Number: UN3082 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2903.99 Hazard Statements: H302-H319 Harmful if swallowed. Causes…

  • tert-Butyl alcohol, anhydrous, 99.5%, packaged under Argon in resealable…

    Alfa Aesar

    Synonym(s): 2-Methyl-2-propanol, tert-Butanol Formula: C4H10O Formula weight: 74.12 Purity: 99.5%, packaged under Argon in resealable ChemSeal^t bottles CAS Number: 75-65-0 UN Number: UN1120 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2905.14 Hazard…

  • 1,4-Benzenedimethanol, 99%

    Alfa Aesar

    Synonym(s): 1,4-Bis(hydroxymethyl)benzene, p-Xylene-alpha,alpha'-diol Formula: C8H10O2 Formula weight: 138.17 Purity: 99% CAS Number: 589-29-7 Harmonized Tariff Code:  2906.29

  • 3-Bromo-4-methylpyridine, 98%

    Alfa Aesar

    Synonym(s): 3-Bromo-4-picoline Formula: C6H6BrN Formula weight: 172.03 Purity: 98% CAS Number: 3430-22-6 Packing Group: III Harmonized Tariff Code:  2933.39 Hazard Statements: H301-H311-H227-H332-H315-H319 Toxic if swallowed. Toxic in contact with skin. Combustible liquid.…

  • 3-(Benzylamino)propionitrile, 97+%

    Alfa Aesar

    Formula: C6H5CH2NHCH2CH2CN Formula weight: 160.22 Purity: 97+% CAS Number: 706-03-6 UN Number: UN3276 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2926.90 Hazard Statements: H331-H302-H312 Toxic if inhaled. Harmful if swallowed. Harmful in contact with…

  • Barium carbonate, 99.8%

    Alfa Aesar

    Formula: BaCO3 Formula weight: 197.35 Purity: 99.8% CAS Number: 513-77-9 Harmonized Tariff Code:  2836.60 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 using…

  • 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…

  • Benzalkonium chloride

    Alfa Aesar

    Synonym(s): Alkylbenzyldimethylammonium chloride Formula: C6H5CH2N(CH3)2RCl CAS Number: 63449-41-2 UN Number: UN2923 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  3402.12 Hazard Statements: H314-H318-H302-H312 Causes severe skin burns and eye damage. Causes…

  • Benzyl 2-acetamido-4,6-O-benzylidene-2-deoxy-^a-D-glucopyranoside

    Alfa Aesar

    Formula: C22H25NO6 Formula weight: 399.44 CAS Number: 13343-63-0 Harmonized Tariff Code:  2938.90

  • 5-Bromopyridine-3-boronic acid, tech. 85%

    Alfa Aesar

    Synonym(s): 3-Bromo-5-pyridylboronic acid Formula: C5H5BBrNO2 Formula weight: 201.82 Purity: tech. 85% CAS Number: 452972-09-7 Harmonized Tariff Code:  2933.39 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • Bis[3-(triethoxysilyl)propyl]tetrasulfide, S 22.3% (typical)

    Alfa Aesar

    Formula: ((CH3CH2O)3SiCH2CH2CH2SS)2 Formula weight: 538.94 CAS Number: 40372-72-3 Harmonized Tariff Code:  2931.90 Hazard Statements: H315-H319-H335-H227 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Combustible liquid. Precautionary…

  • 4-(Boc-amino)benzonitrile, 97%

    Alfa Aesar

    Formula: C12H14N2O2 Formula weight: 218.26 Purity: 97% CAS Number: 143090-18-0 Harmonized Tariff Code:  2926.90 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • 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…

  • 2-Bromo-4,5-difluorophenylacetic acid, 98%

    Alfa Aesar

    Formula: C8H5BrF2O2 Formula weight: 251.03 Purity: 98% CAS Number: 883502-07-6 Harmonized Tariff Code:  2916.39 Risk Phrases: 36/37/38 Irritating to eyes, respiratory system and skin. Safety Phrases: 26-37-60 In case of contact with eyes, rinse immediately with plenty of water…

  • 4-tert-Butylbenzoic acid, 99+%

    Alfa Aesar

    Formula: C11H14O2 Formula weight: 178.23 Purity: 99+% CAS Number: 98-73-7 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2916.39 Hazard Statements: H311-H331-H361-H373-H302 Toxic in contact with skin. Toxic if inhaled. Suspected of damaging…

  • 1-Boc-4-(6-nitro-3-pyridyl)piperazine, 97%

    Alfa Aesar

    Synonym(s): tert-Butyl 4-(6-nitro-3-pyridyl)piperazine-1-carboxylate Formula: C14H20N4O4 Formula weight: 308.33 Purity: 97% CAS Number: 571189-16-7 Harmonized Tariff Code:  2933.59 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • Barium sulfate, precipitated, 99%

    Alfa Aesar

    Formula: BaSO4 Formula weight: 233.40 Purity: 99% CAS Number: 7727-43-7 Harmonized Tariff Code:  2833.27

  • 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…

  • Bromophenol Blue, ACS

    Alfa Aesar

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

  • 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. …

  • Bromocresol Green sodium salt

    Alfa Aesar

    Synonym(s): Bromocresol Green, water soluble Formula: C21H13Br4NaO5S Formula weight: 720.01 CAS Number: 62625-32-5 Harmonized Tariff Code:  2914.70

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