Reagents, U

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Reagents, U

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  • Ubidecarenone impurity D

    MilliporeSigma

    European Pharmacopoeia (EP) Reference Standard Synonym(s): Coenzyme Q9; Q-9; Ubiquinone-45; Ubiquinone-9 Empirical Formula: C54H82O4 Formula Weight: 795.23 Linear Formula: C54H82O4 MDL Number: …

  • ALDRICH Uroporphyrin III octamethyl ester

    MilliporeSigma

    Empirical Formula: C48H54N4O16 Linear Formula: C48H54N4O16 Formula Weight: 942.96 MDL Number: MFCD00058738 Storage: −20°C

  • Umbelliferone

    MilliporeSigma

    analytical standard Synonym(s): 7-Hydroxy-2 H -1-benzopyran-2-one; 7-Hydroxycoumarin Empirical Formula: C9H6O3 Formula Weight: 162.14 Linear Formula: C9H6O3 MDL Number: MFCD00006878 Purity: ≥98.0% (HPLC) …

  • SIGMA UKTS8878

    MilliporeSigma

  • Ursolic acid, primary pharmaceutical reference standard

    MilliporeSigma

    CAS No.: 77-52-1 Synonyms: 3β-Hydroxy-12-ursen-28-ic acid Formula: C30H48O3 Formula Weight: 456.7 Linear Formula: C30H48O3 MDL No.: MFCD00009621 Melting Point: 292 °C (dec.)(lit.)

  • SIGMA UTX human recombinant, expressed in baculovirus infected Sf9 cells, >=40% …

    MilliporeSigma

    Synonym(s): KABUK2; KDM6A; lysine (K)-specific demethylase 6A Purity: ≥40% (SDS-PAGE) Storage: −70°C

  • 1-Undecene, 97%

    GFS Chemicals

    CH3(CH2)8CH=CH2 CAS#: 821-95-4 F.W.: 154.30

  • 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…

  • SIGMA Uvaol >=95%

    MilliporeSigma

    Synonym(s): Urs-12-ene-3,28-diol Empirical Formula: C30H50O2 Linear Formula: C30H50O2 Formula Weight: 442.72 MDL Number: MFCD00009620 Purity: ≥95% Melting Point: 223-225 °C(lit.)

  • SIGMA UKTS8049

    MilliporeSigma

  • SIGMA URB597 >=98% (HPLC), powder

    MilliporeSigma

    Synonym(s): Cyclohexylcarbamic acid 3-¦-carbamoyl-biphenyl-3-yl ester Empirical Formula: C20H22N2O3 Linear Formula: C20H22N2O3 Formula Weight: 338.40 MDL Number: MFCD05863934 Purity: ≥98%…

  • SIGMA Uridine 5'-monophosphate 98-100%

    MilliporeSigma

    Synonym(s): U 5'-P; UMP; Uridylic acid Empirical Formula: C9H13N2O9P Linear Formula: C9H13N2O9P Formula Weight: 324.18 MDL Number: MFCD00067346 Purity: 98-100% Storage: −20°C

  • U-0521, 98%

    Alfa Aesar

  • Uridine ; >/= 98% (UV)

    AFG Bioscience

    Synonyms: 1-b-D-Ribofuranosyluracil Uracil-1-b-D-ribofuranoside Purity Limit: ≥ 98% (UV) CAS No.: 58-96-8 Molecular Formula: C9H12N2O6 Molecular Weight: 244.2 MDL No.: MFCD00006526 Appearance: White or almost white crystalline powder Melting Point: 162.0-171.0 °C Optical…

  • Undecane

    MilliporeSigma

    analytical standard Synonym(s): n -Undecane; Hendecane Empirical Formula: C11H24 Formula Weight: 156.31 Linear Formula: CH3(CH2)9CH3 MDL Number: MFCD00008959 Purity: ≥99.8% (GC) Boiling Point: …

  • Uniconazole

    MilliporeSigma

    PESTANAL ® , analytical standard Synonym(s): ( E )-( RS )-1-(4-Chlorophenyl)-4,4-dimethyl-2-(1 H -1,2,4-triazol-1-yl)pent-1-en-3-ol Empirical Formula: C15H18ClN3O Formula Weight: 291.78 Linear Formula: C15H18ClN3O …

  • Uranium Standard

    Ultra Scientific

    1 Analyte(s) @ 1000 µg/mL in water with dilute nitric acid

  • Ultramark r 2500F

    Alfa Aesar

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

  • Urea

    MilliporeSigma

    pharmaceutical secondary standard; traceable to USP, PhEur, BP Synonym(s): Urea

  • UniverSol™ ES Liquid Scintillation Cocktail

    MP Biomedicals

    UniverSol is a very efficient environmentally safe, non-toxic, biodegradable liquid scintillation cocktail of the "gelling" variety. Environmentally Safe Biodegradable Non-toxic Non-flammable Primary Applications: Aqueous samples from 0 to 15% count as…

  • Uranyl ionophore I

    MilliporeSigma

    Selectophore ™ Synonym(s): ETH 295; N,N'-Diheptyl-N,N',6,6-tetramethyl-4,8-dioxaundecanediamide Empirical Formula: C27H54N2O4 Formula Weight: 470.73 Linear Formula: C27H54N2O4 MDL Number: …

  • SIGMA Uridine 5'-triphosphate trisodium salt hydrate Type IV, 90-95%

    MilliporeSigma

    Synonym(s): UTP Na3 Empirical Formula: C9H12N2Na3O15P3 -+ xH2O Linear Formula: C9H12N2Na3O15P3 -+ xH2O Formula Weight: …

  • Urease from Canavalia ensiformis (Jack bean), Type III, powder, 15,000-50,000…

    MilliporeSigma

    CAS Number: 9002-13-5 EC Number: 232-656-0 Enzyme Commission (EC) Number: 1 3.5.1.5 MDL Number: MFCD00070858 Unit Definition One micromolar unit will liberate 1.0 µmole of NH3 from urea per min at pH 7.0 at 25 °C. It is equivalent to 1.0 I.U. or 0.054…

  • Urea, Crystal, AR (ACS)

    Avantor - Macron Fine Chemicals™

    Formula: NH2CONH2 Formula Weight: 60.06 CAS Number: 57-13-6

  • Uniconazole

    MilliporeSigma

    analytical standard Synonym(s): ( E )-( RS )-1-(4-Chlorophenyl)-4,4-dimethyl-2-(1 H -1,2,4-triazol-1-yl)pent-1-en-3-ol Empirical Formula: C15H18ClN3O Formula Weight: 291.78 Linear Formula: C15H18ClN3O MDL Number: …

  • Urea

    MP Biomedicals

    Urea is a prinicipal protein metabolite end product of nitrogen metabolism in most mammals, formed by the enzymatic reactions of the Kreb's cycle and the major product for the removal of free ammonia (NH4+) in vivo. Urea is a mild agent usually used in the solubilization and denaturation of…

  • SIGMA Urotensin I carp >=98% (HPLC)

    MilliporeSigma

    Empirical Formula: C208H336N64O67S2 Linear Formula: C208H336N64O67S2 Formula Weight: 4869.41 Purity: ≥98% (HPLC) Storage: −20°C

  • Urea

    MilliporeSigma

    analytical standard Synonym(s): Carbamide; Carbonyldiamide Empirical Formula: CH4N2O Formula Weight: 60.06 Linear Formula: NH2CONH2 MDL Number: MFCD00008022 Purity: ≥98.5% (HPLC) Melting Point: 132-135 °C(lit.) …

  • ALDRICH Umbelliferone, 99%

    MilliporeSigma

    Synonym(s): 7-Hydroxy-2 H -1-benzopyran-2-one; 7-Hydroxycoumarin Formula: C9H6O3 Formula Weight: 162.14 CAS No.: 93-35-6 Purity: 99% Packaging: 10, 25, 100 g in poly bottle

  • SIGMA UCL-1848 trifluoroacetate salt >=98% (HPLC), solid

    MilliporeSigma

    Synonym(s): 8,14-Diaza-1,7(1,4)-diquinolinacyclotetradecaphane trifluoroacetate salt Empirical Formula: C32H34F6N4O4 -+ xC2HF3O2 Linear Formula: …

  • Univer 3 Powder, 454G

    Hach

    Combined indicator and buffer for determination of total hardness by titration methods. 454 g bottle

  • SIAL Urea

    MilliporeSigma

    puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%, 99.0-101.0% (calc. on dry substance) Synonym(s): Carbamide; Carbonyldiamide Empirical Formula: CH4N2O Formula Weight: 60.06 Linear Formula: NH2CONH2 MDL…

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