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  • 2,2-Diphenyl-1-picrylhydrazyl (free radical), 95%

    Alfa Aesar

    Synonym(s): DPPH Formula: C18H12N5O6 Formula weight: 394.32 Purity: 95% CAS Number: 1898-66-4 UN Number: UN2811 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2927.00 Hazard Statements: H300-H315-H319-H335 Fatal if swallowed. Causes skin irritation. Causes…

  • Dimedone, 98%

    Alfa Aesar

    Synonym(s): 5,5-Dimethyl-1,3-cyclohexanedione Formula: C8H12O2 Formula weight: 140.18 Purity: 98% CAS Number: 126-81-8 Harmonized Tariff Code:  2914.29

  • Diethylamine, 99+%

    Alfa Aesar

    Formula: C4H11N Formula weight: 73.14 Purity: 99+% CAS Number: 109-89-7 UN Number: UN1154 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2921.19 Hazard Statements: H225-H314-H302-H312-H332 Highly flammable liquid and vapour. Causes severe skin burns and eye…

  • 3,4-Dihydroxy-L-phenylalanine, 98+%

    Alfa Aesar

    Synonym(s): L-DOPA, 3-Hydroxy-L-tyrosine Formula: C9H11NO4 Formula weight: 197.19 Purity: 98+% CAS Number: 59-92-7 Harmonized Tariff Code:  2922.50 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: P264-P270-P301+P310-P321-P405-P501a Wash thoroughly after…

  • 1,5-Diphenylcarbazide, 97+%

    Alfa Aesar

    Synonym(s): 1,5-Diphenylcarbohydrazide Formula: C13H14N4O Formula weight: 242.28 Purity: 97+% CAS Number: 140-22-7 Harmonized Tariff Code:  2928.00 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • N,N-Dimethylethylamine, 99%

    Alfa Aesar

    Synonym(s): N-Ethyldimethylamine Formula: C4H11N Formula weight: 73.14 Purity: 99% CAS Number: 598-56-1 UN Number: UN2733 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2921.19 Hazard Statements: H225-H314-H318-H302-H332 Highly flammable liquid and vapour.…

  • 1,4-Dichlorobenzene, 99+%

    Alfa Aesar

    Synonym(s): p-Dichlorobenzene Formula: C6H4Cl2 Formula weight: 147.00 Purity: 99+% CAS Number: 106-46-7 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2903.91 Hazard Statements: H351-H302-H332-H319 Suspected of causing cancer. Harmful if…

  • D-(+)-Trehalose, anhydrous

    Alfa Aesar

    Synonym(s): ^a-D-Glucopyranosyl-^a-D-glucopyranoside, anhydrous Formula: C12H22O11 Formula weight: 342.30 CAS Number: 99-20-7 Harmonized Tariff Code:  2940.00

  • DNA Molecular Weight Marker, wide range Ladder (100-12,000 bp)

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • Dextran, MW ca 500,000

    Alfa Aesar

    Formula: (C6H10O5)n CAS Number: 9004-54-0 Harmonized Tariff Code:  3913.90

  • DL-^a-Tocopherol, 97+%

    Alfa Aesar

    Synonym(s): Vitamin E Formula: C29H50O2 Formula weight: 430.72 Purity: 97+% CAS Number: 10191-41-0 Harmonized Tariff Code:  2936.28

  • Diphenylmethane, 99+%

    Alfa Aesar

    Formula: (C6H5)2CH2 Formula weight: 168.24 Purity: 99+% CAS Number: 101-81-5 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2902.90 Risk Phrases: 50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic…

  • Dimidium bromide, 95%

    Alfa Aesar

    Synonym(s): 3,8-Diamino-5-methyl-6-phenylphenanthridinium bromide Formula: C20H18BrN3 Formula weight: 380.31 Purity: 95% CAS Number: 518-67-2 Harmonized Tariff Code:  2933.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • D-Mannitol, ACS

    Alfa Aesar

    Formula: HOCH2(CHOH)4CH2OH Formula weight: 182.17 CAS Number: 69-65-8 Harmonized Tariff Code:  2905.43

  • D-Cycloserine, 98+%

    Alfa Aesar

    Synonym(s): (R)-(+)-4-Amino-3-isoxazolidinone Formula: C3H6N2O2 Formula weight: 102.09 Purity: 98+% CAS Number: 68-41-7 Harmonized Tariff Code:  2941.90

  • Dimethyl sulfoxide-d{6}, 99.5% (Isotopic)

    Alfa Aesar

    Synonym(s): Methyl sulfoxide-d6 Formula: C2D6OS Formula weight: 84.17 Purity: 99.5% (Isotopic) CAS Number: 2206-27-1 Harmonized Tariff Code:  2845.90 Hazard Statements: H227 Combustible liquid. Precautionary Statements: P210-P280-P370+P378a-P403+P235-P501a Keep away from…

  • D-Tryptophan, 99%

    Alfa Aesar

    Synonym(s): (R)-2-Amino-3-(3-indolyl)propionic acid, H-D-Trp-OH Formula: C11H12N2O2 Formula weight: 204.23 Purity: 99% CAS Number: 153-94-6 Harmonized Tariff Code:  2933.99

  • Diphenylamine, ACS

    Alfa Aesar

    Synonym(s): N-Phenylaniline, N-Phenylbenzenamine Formula: C12H11N Formula weight: 169.23 CAS Number: 122-39-4 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2921.44 Hazard Statements: H301-H311-H331-H373 Toxic if swallowed. Toxic in contact…

  • D-Ribonic acid-1,4-lactone

    Alfa Aesar

    Synonym(s): D-(+)-Ribonic acid-^y-lactone Formula: C5H8O5 Formula weight: 148.11 CAS Number: 5336-08-3 Harmonized Tariff Code:  2932.20

  • 4,5-Dimethoxy-2-nitrobenzyl alcohol, 98%

    Alfa Aesar

    Synonym(s): 6-Nitroveratryl alcohol Formula: C9H11NO5 Formula weight: 213.19 Purity: 98% CAS Number: 1016-58-6 Harmonized Tariff Code:  2909.30

  • 1,3-Dioxane, 98%

    Alfa Aesar

    Formula: C4H8O2 Formula weight: 88.11 Purity: 98% CAS Number: 505-22-6 UN Number: UN1165 Hazard Class: 3 Packing Group: II Harmonized Tariff Code:  2932.99 Hazard Statements: H225-H315-H319-H335 Highly flammable liquid and vapour. Causes skin irritation. Causes serious eye…

  • 2,6-Dimethylanisole, 98+%

    Alfa Aesar

    Synonym(s): 2-Methoxy-m-xylene Formula: C9H12O Formula weight: 136.19 Purity: 98+% CAS Number: 1004-66-6 Harmonized Tariff Code:  2909.30 Hazard Statements: H227 Combustible liquid. Precautionary Statements: P210-P280-P370+P378a-P403+P235-P501a Keep away from…

  • Dowex r 50WX8 50-100 (H)

    Alfa Aesar

    CAS Number: 11119-67-8 Harmonized Tariff Code:  3914.00 Safety Phrases: 24/25 Avoid contact with skin and eyes.

  • DNA marker, high range, 1,000 Base Pair Ladder

    Alfa Aesar

    Harmonized Tariff Code:  3822.00 Hazard Statements: H319 Causes serious eye irritation. Precautionary Statements: P280-P264-P305+P351+P338-P337+P313 Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with…

  • 4-Dimethylaminobenzaldehyde, ACS

    Alfa Aesar

    Synonym(s): Ehrlich's Reagent Formula: C9H11NO Formula weight: 149.19 CAS Number: 100-10-7 Harmonized Tariff Code:  2922.39 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. …

  • DNA marker, low range, 250 Base Pair Ladder

    Alfa Aesar

    Harmonized Tariff Code:  3822.00

  • 3,4-Dimethoxybenzyl alcohol, 97%

    Alfa Aesar

    Synonym(s): Veratryl alcohol Formula: C9H12O3 Formula weight: 168.19 Purity: 97% CAS Number: 93-03-8 Harmonized Tariff Code:  2909.49

  • 3,5-Dinitrosalicylic acid, 97+%

    Alfa Aesar

    Synonym(s): 3,5-Dinitro-2-hydroxybenzoic acid, 2-Hydroxy-3,5-dinitrobenzoic acid Formula: C7H4N2O7 Formula weight: 228.12 Purity: 97+% CAS Number: 609-99-4 Harmonized Tariff Code:  2918.29 Hazard Statements: H301-H315-H319-H335 Toxic if swallowed. Causes skin irritation. Causes…

  • Dextran, MW ca 40,000

    Alfa Aesar

    Synonym(s): Dextran 40 Formula: (C6H10O5)n CAS Number: 9004-54-0 Harmonized Tariff Code:  3913.90

  • 2,4-Dihydroxybenzoic acid, 97%

    Alfa Aesar

    Synonym(s): ^b-Resorcylic acid Formula: C7H6O4 Formula weight: 154.12 Purity: 97% CAS Number: 89-86-1 Harmonized Tariff Code:  2918.29 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • 3,5-Dimethylphenyl isocyanate, 97%

    Alfa Aesar

    Formula: C9H9NO Formula weight: 147.18 Purity: 97% CAS Number: 54132-75-1 UN Number: UN2206 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2929.10 Hazard Statements: H300-H330-H334-H227-H315-H319-H335 Fatal if swallowed. Fatal if inhaled. May cause allergy or…

  • 2,6-Dimethylphenol, 99%

    Alfa Aesar

    Synonym(s): 2,6-Xylenol Formula: C8H10O Formula weight: 122.17 Purity: 99% CAS Number: 576-26-1 UN Number: UN2261 Hazard Class: 6.1 Packing Group: II Harmonized Tariff Code:  2907.19 Hazard Statements: H301-H311-H314-H318 Toxic if swallowed. Toxic in contact with skin.…

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