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  • U-37883A, 98%

    Alfa Aesar

  • Urea, ACS, 99.0-100.5%

    Alfa Aesar

    Synonym(s): Carbamide Formula: NH2CONH2 Formula weight: 60.06 Purity: 99.0-100.5% CAS Number: 57-13-6 Harmonized Tariff Code:  3102.10

  • Uridine-5'-monophosphate disodium salt, 99%

    Alfa Aesar

    Synonym(s): 5'-Uridylic acid disodium salt Formula: C9H11N2Na2O9P Formula weight: 368.15 Purity: 99% CAS Number: 3387-36-8 Harmonized Tariff Code:  2934.99

  • Urea, ultrapure, 99%

    Alfa Aesar

    Synonym(s): Carbamide Formula: CH4N2O Formula weight: 60.06 Purity: 99% CAS Number: 57-13-6 Harmonized Tariff Code:  3102.10

  • U-73122, 99+%

    Alfa Aesar

    Synonym(s): 1-[6-[((17^b)-3-Methoxyestra-1,3,5[10]-trien-17-yl)amino]hexyl]pyrrole-2,5-dione Formula: C29H40N2O3 Formula weight: 464.65 Purity: 99+% CAS Number: 112648-68-7 Harmonized Tariff Code:  2925.19 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious…

  • 2-Undecanol, 98+%

    Alfa Aesar

    Synonym(s): Methyl n-nonyl carbinol Formula: C11H24O Formula weight: 172.31 Purity: 98+% CAS Number: 1653-30-1 Harmonized Tariff Code:  2905.19

  • U0126, 99+%

    Alfa Aesar

    Synonym(s): 1,4-Diamino-2,3-dicyano-1,4-bis(2-aminophenylthio)butadiene Formula: C18H16N6S2 Formula weight: 380.49 Purity: 99+% CAS Number: 109511-58-2 Harmonized Tariff Code:  2930.90

  • Uric acid, 99%

    Alfa Aesar

    Formula: C5H4N4O3 Formula weight: 168.11 Purity: 99% CAS Number: 69-93-2 Harmonized Tariff Code:  2933.59

  • Uridine, 99%

    Alfa Aesar

    Formula: C9H12N2O6 Formula weight: 244.20 Purity: 99% CAS Number: 58-96-8 Harmonized Tariff Code:  2934.99

  • n-Undecane, 99%

    Alfa Aesar

    Synonym(s): n-Hendecane Formula: C11H24 Formula weight: 156.30 Purity: 99% CAS Number: 1120-21-4 UN Number: UN2330 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2901.10 Hazard Statements: H304-H226-H315-H319-H335 May be fatal if swallowed and enters…

  • Urease, Jack Beans

    Alfa Aesar

    Synonym(s): EC 3.5.1.5, Urea amidohydrolase CAS Number: 9002-13-5 Harmonized Tariff Code:  3507.90 Hazard Statements: H334-H335-H315-H319 May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause respiratory irritation. Causes skin irritation. Causes serious…

  • Ultramark r 1621, Mass Spec Std

    Alfa Aesar

    Formula weight: 2120.00 CAS Number: 105809-15-2 Harmonized Tariff Code:  2934.99 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…

  • U-73343, 98%

    Alfa Aesar

    Synonym(s): 1-[6-[((17^b)-3-Methoxyestra-1,3,5[10]-trien-17-yl)amino]hexyl]pyrrolidine-2,5-dione Formula: C29H42N2O3 Formula weight: 466.66 Purity: 98% CAS Number: 142878-12-4 Harmonized Tariff Code:  2925.19 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes…

  • Uricase, Candida utilis

    Alfa Aesar

    Synonym(s): EC 1.7.3.3 CAS Number: 9002-12-4 Harmonized Tariff Code:  3507.90

  • Urocortin, human

    Alfa Aesar

    Formula: C204H337N63O64 Formula weight: 4696.30 CAS Number: 176591-49-4 Harmonized Tariff Code:  2933.99

  • Urea, Molecular Biology Reagent

    Alfa Aesar

    Synonym(s): Carbamide Formula: CH4N2O Formula weight: 60.06 CAS Number: 57-13-6 Harmonized Tariff Code:  3102.10

  • 3-Undecanone, 98%

    Alfa Aesar

    Synonym(s): Ethyl n-octyl ketone Formula: C11H22O Formula weight: 170.30 Purity: 98% CAS Number: 2216-87-7 Harmonized Tariff Code:  2914.19 Hazard Statements: H227 Combustible liquid. Precautionary Statements: P210-P280-P370+P378a-P403+P235-P501a Keep away from…

  • trans,trans-2,4-Undecadienal, 90+%, remainder mainly trans,cis isomer

    Alfa Aesar

    Formula: C11H18O Formula weight: 166.27 Purity: 90+%, remainder mainly trans,cis isomer CAS Number: 30361-29-6 Harmonized Tariff Code:  2912.19

  • Urea, 99.3+%

    Alfa Aesar

    Synonym(s): Carbamide Formula: CH4N2O Formula weight: 60.06 Purity: 99.3+% CAS Number: 57-13-6 Harmonized Tariff Code:  3102.10

  • Uracil, 99+%

    Alfa Aesar

    Synonym(s): 2,4-Dihydroxypyrimidine Formula: C4H4N2O2 Formula weight: 112.09 Purity: 99+% CAS Number: 66-22-8 Harmonized Tariff Code:  2933.59

  • U-18666A, 95%

    Alfa Aesar

  • U-69593, 99%

    Alfa Aesar

  • 10-Undecenoic acid, 99%

    Alfa Aesar

    Synonym(s): Undecylenic acid Formula: C11H20O2 Formula weight: 184.28 Purity: 99% CAS Number: 112-38-9 Harmonized Tariff Code:  2916.19 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • 8-Undecenal, predominantly cis, 96%

    Alfa Aesar

    Formula: C11H20O Formula weight: 168.29 Purity: 96% CAS Number: 58296-81-4 Harmonized Tariff Code:  2912.19

  • Undecanoic acid, 98%

    Alfa Aesar

    Formula: CH3(CH2)9CO2H Formula weight: 186.30 Purity: 98% CAS Number: 112-37-8 Harmonized Tariff Code:  2915.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary Statements: …

  • Urocortin II, human

    Alfa Aesar

    Formula: C194H338N63O54S Formula weight: 4449.27 CAS Number: 398001-88-2 Harmonized Tariff Code:  2933.99

  • Urocortin, rat

    Alfa Aesar

    Formula: C206H338N62O64 Formula weight: 4707.33 CAS Number: 171543-83-2 Harmonized Tariff Code:  2933.99

  • n-Undecyl methacrylate, 96%

    Alfa Aesar

    Synonym(s): Methacrylic acid n-undecyl ester Formula: C15H28O2 Formula weight: 240.39 Purity: 96% CAS Number: 16493-35-9 Packing Group: n/a Harmonized Tariff Code:  2916.14 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause…

  • Uridine-5'-triphosphate trisodium salt, 98+%

    Alfa Aesar

    Synonym(s): UTP-Na3 Formula: C9H12N2Na3O15P3 Formula weight: 550.09 Purity: 98+% CAS Number: 19817-92-6 Harmonized Tariff Code:  2934.99 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • Ursodeoxycholic acid, 99%

    Alfa Aesar

    Formula: C24H40O4 Formula weight: 392.56 Purity: 99% CAS Number: 128-13-2 Harmonized Tariff Code:  2918.19

  • Ultramark r 3200F

    Alfa Aesar

    CAS Number: 66795-94-6 Harmonized Tariff Code:  3907.20 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 breathing…

  • Uracil-6-carboxaldehyde monohydrate, 98%

    Alfa Aesar

    Synonym(s): 6-Formyluracil monohydrate Formula: C5H4N2O3 H2O Formula weight: 158.11 (140.10anhy) Purity: 98% CAS Number: 36327-91-0

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