Reagents, B

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  • BIS-TRIS, 0.2M buffer soln., pH 6.0

    Alfa Aesar

  • Bromophenol Blue, ACS

    Alfa Aesar

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

  • 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.…

  • 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…

  • Buffer solution, pH 13.00 (^+0.01 @ 25°C), No Color, Specpure®, NIST Traceable

    Alfa Aesar

    Harmonized Tariff Code:  3822.00 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: P280-P305+P351+P338-P362-P321-P332+P313-

  • Buffer solution, pH 12.00 (^+0.01 @ 25^oC), No Color, Specpure r, NIST Traceable

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Blue Tetrazolium chloride

    Alfa Aesar

    Synonym(s): BTC, Tetrazolium Blue chloride Formula: C40H32Cl2N8O2 Formula weight: 727.66 CAS Number: 1871-22-3 Harmonized Tariff Code:  2933.99

  • Boron trifluoride diethyl etherate, 46.5% BF{3} min, packaged under Argon in…

    Alfa Aesar

    Formula: C4H10BF3O Formula weight: 141.93 CAS Number: 109-63-7 UN Number: UN2604 Hazard Class: 8 Packing Group: I Harmonized Tariff Code:  2942.00 Hazard Statements: H331-H372-H314-H318-H226-H302 Toxic if inhaled. Causes damage to organs through prolonged or repeated…

  • Borate, 0.5M buffer soln., pH 8.5

    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…

  • 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…

  • Betaine, anhydrous, 98%

    Alfa Aesar

    Synonym(s): (Carboxymethyl)trimethylammonium inner salt Formula: (CH3)3NCH2CO2 Formula weight: 117.15 Purity: 98% CAS Number: 107-43-7 Harmonized Tariff Code:  2923.90

  • (R)-(+)-1-(4-Bromophenyl)ethylamine, ChiPros, 99%, ee 98%

    Alfa Aesar

    Synonym(s): (R)-(+)-p-Bromo-alpha-methylbenzylamine Formula: C8H10BrN Formula weight: 200.08 Purity: 99%, ee 98% CAS Number: 45791-36-4 UN Number: UN2735 Hazard Class: 8 Packing Group: III Harmonized Tariff Code:  2921.49 Hazard Statements: H314-H318 Causes severe skin…

  • Benzoyl peroxide, 97% (dry wt.), wet with 25% water

    Alfa Aesar

    Synonym(s): Dibenzoyl peroxide Formula: C14H10O4 Formula weight: 242.23 Purity: 97% (dry wt.), wet with 25% water CAS Number: 94-36-0 UN Number: UN3104 Hazard Class: 5.2 Harmonized Tariff Code:  2916.32 Hazard Statements: H242-H319-H317 Heating may cause a fire. Causes…

  • Barium titanium(IV) 2-ethylhexanoate pentaisopropoxide, 99.5+% (metals basis),…

    Alfa Aesar

    Synonym(s): Barium titanium(IV) 2-ethylhexano-isopropoxide Formula: C23H50BaO7Ti Formula weight: 623.89 Purity: 99.5+% (metals basis), produces 5% BaTiO3, in isopropanol UN Number: UN1219 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2915.90 Hazard Statements: …

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

    Alfa Aesar

    Formula: BaN2O6 Formula weight: 261.35 Purity: 99.999% (metals basis) 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…

  • 1-Bromopropane, 99%

    Alfa Aesar

    Synonym(s): n-Propyl bromide Formula: C3H7Br Formula weight: 123.00 Purity: 99% CAS Number: 106-94-5 UN Number: UN2344 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2903.39 Hazard Statements: H225-H360-H373-H315-H319-H335-H336 Highly flammable liquid and…

  • Barium sulfate, precipitated, 99%

    Alfa Aesar

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

  • BML-259, 98%

    Alfa Aesar

  • 5-Bromo-4-chloro-3-indolyl-^b-D-galactopyranoside, 98+%

    Alfa Aesar

    Synonym(s): X-gal Formula: C14H15BrClNO6 Formula weight: 408.64 Purity: 98+% CAS Number: 7240-90-6 Harmonized Tariff Code:  2934.99

  • 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

  • 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: …

  • O-(1H-Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate, 99%

    Alfa Aesar

    Synonym(s): TBTU Formula: C11H16BF4N5O Formula weight: 321.08 Purity: 99% CAS Number: 125700-67-6 Harmonized Tariff Code:  2933.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

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

    Alfa Aesar

    Synonym(s): Acetic acid barium salt Formula: C4H6BaO4 Formula weight: 255.43 Purity: 99.999% (metals basis) CAS Number: 543-80-6 UN Number: UN1564 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2915.29 Hazard Statements: H302-H332 Harmful if swallowed.…

  • 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

  • Bicinchoninic acid disodium salt

    Alfa Aesar

    Synonym(s): BCA, 2,2'-Biquinoline-4,4'-dicarboxylic acid disodium salt Formula: C20H10N2O4Na2 Formula weight: 388.29 CAS Number: 979-88-4 Harmonized Tariff Code:  2933.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory…

  • Boron nitride, 99.5% (metals basis)

    Alfa Aesar

    Formula: BN Formula weight: 24.82 Purity: 99.5% (metals basis) CAS Number: 10043-11-5 Harmonized Tariff Code:  2850.00

  • Barium fluoride, Puratronic r, 99.99% (metals basis)

    Alfa Aesar

    Formula: BaF2 Formula weight: 175.36 Purity: 99.99% (metals basis) CAS Number: 7787-32-8 UN Number: UN1564 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2826.19 Hazard Statements: H302-H332 Harmful if swallowed. Harmful if inhaled. Precautionary…

  • 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 6.00 (^+0.01 @ 25^oC), No Color, Specpure r, NIST Traceable

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • 4-Bromobenzylamine hydrochloride, 98%

    Alfa Aesar

    Formula: C7H8BrN HCl Formula weight: 222.52 Purity: 98% CAS Number: 26177-44-6 Harmonized Tariff Code:  2921.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • 1,4-Butanediol diglycidyl ether, 96%

    Alfa Aesar

    Synonym(s): Tetramethylene glycol diglycidyl ether Formula: C10H18O4 Formula weight: 202.25 Purity: 96% CAS Number: 2425-79-8 Harmonized Tariff Code:  2910.90 Hazard Statements: H312-H332-H315-H319-H317 Harmful in contact with skin. Harmful if inhaled. Causes skin irritation.…

  • 1-Bromooctadecane, 97%

    Alfa Aesar

    Synonym(s): n-Octadecyl bromide, Stearyl bromide Formula: CH3(CH2)17Br Formula weight: 333.40 Purity: 97% CAS Number: 112-89-0 Harmonized Tariff Code:  2903.39

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