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  • ALDRICH Urea-15N2, 5 atom % 15N

    Sigma-Aldrich

    Synonym(s): 15 N Labeled urea; Carbamide- 15 N2; Carbonyldiamide- 15 N2 Empirical Formula: CH4 15 N2O Linear Formula: H2 15 NCO 15 NH2 Formula Weight: 62.04 MDL Number: MFCD00064399 Melting Point: 132-135 °C(lit.)

  • SIGMA Urease Buffer Reagent

    Sigma-Aldrich

    Storage: 2-8°C

  • Universal Transfection Reagent Polymer reagent for transfecting common mammalian…

    Sigma-Aldrich

    MDL Number: Storage: −20°C; 2-8°C Included Fees: C939A88 has a Dry/Wet Ice Fee included in the price. To see the value of these fees, download our Fee List.

  • SIGMA Urea, powder, BioReagent, for molecular biology, suitable for cell culture

    Sigma-Aldrich

    Synonyms: Carbamide; Carbonyldiamide Formula: NH2CONH2 Formula Weight: 60.06 CAS No.: 57-13-6 Density: 1.335 g/mL at 25 °C(lit.) Application: Used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful…

  • SIAL Universal sorbent

    Sigma-Aldrich

    Synonym(s): Fullers earth granulate

  • Urea solution, for microbiology, 40% in H2O

    Sigma-Aldrich

    CAS No.: 57-13-6 Synonyms: Carbamide; Carbonyldiamide Formula: CH4N2O Formula Weight: 60.06 Linear Formula: NH2CONH2 MDL No.: MFCD00008022 Included Fees: C941N96 has a Dry/Wet Ice Fee included in the price. To see the value of these…

  • ALDRICH Urethane, >=99.0% (GC)

    Sigma-Aldrich

    Synonym(s): Carbamic acid ethyl ester; Ethyl carbamate; Ethylurethane Empirical Formula: C3H7NO2 Linear Formula: NH2COOC2H5 Formula Weight: 89.09 MDL Number: MFCD00007966 Purity: ≥99.0% (GC) Boiling Point: …

  • SIGMA Urea 8 M (after reconstitution with 16 mL high purity water)

    Sigma-Aldrich

    Synonym(s): Urea solution; Carbamide; Carbonyldiamide Empirical Formula: CH4N2O Linear Formula: NH2CONH2 Formula Weight: 60.06 MDL Number: MFCD00008022 Beilstein Registry Number: 635724

  • SIGMA Uridine BioUltra, >=99%

    Sigma-Aldrich

    Synonym(s): 1-β-D-Ribofuranosyluracil; Uracil-1-β-D-ribofuranoside Empirical Formula: C9H12N2O6 Linear Formula: C9H12N2O6 Formula Weight: 244.20 MDL Number: MFCD00006526 Purity: …

  • U-73122 hydrate powder

    Sigma-Aldrich

    Synonym(s): 1-[6-[((17β)-3-Methoxyestra-1,3,5[10]-trien-17-yl)amino]hexyl]-1H-pyrrole-2,5-dione Empirical Formula: C29H40N2O3 -+ xH2O Linear Formula: C29H40N2O3 -+ xH2O …

  • Urea, puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%,…

    Sigma-Aldrich

    Synonyms: Carbamide; Carbonyldiamide Formula: NH2CONH2 Formula Weight: 60.06 CAS No.: 57-13-6 Purity: 99.0-100.5%; 99.0-101.0% (calc. on dry substance) Density: 1.335 g/mL at 25 °C(lit.) Application: Used for the denaturation of proteins and as a mild…

  • SIGMA Urokinase from human kidney cells lyophilized powder

    Sigma-Aldrich

    Synonym(s): u-Plasminogen activator MDL Number: MFCD00132566 Storage: 2-8°C

  • SIGMA U0126 monoethanolate >=98% (HPLC), powder

    Sigma-Aldrich

    Synonym(s): 1,4-Diamino-2,3-dicyano-1,4-bis(o-aminophenylmercapto)butadiene monoethanolate Empirical Formula: C18H16N6S2 -+ C2H5OH Linear Formula: C18H16N6S2 -+…

  • FLUKA Universal Beer Agar

    Sigma-Aldrich

    for microbiology Synonym(s): UB Agar

  • SIGMA Urea Assay Kit sufficient for 100 colorimetric-átests

    Sigma-Aldrich

    Storage: −20°C

  • FLUKA Urea agar base (Christensen)

    Sigma-Aldrich

    for microbiology

  • ALDRICH Urazole, 97%

    Sigma-Aldrich

    Formula: C2H3N3O2 Formula Weight: 101.06 CAS No.: 3232-84-6 Purity: 97% Packaging: 5 g in glass bottle

  • SIGMA Uridine, powder, BioReagent, suitable for cell culture

    Sigma-Aldrich

    Synonym(s): 1-β-D-Ribofuranosyluracil; Uracil-1-β-D-ribofuranoside Formula: C9H12N2O6 Formula Weight: 244.20 CAS No.: 58-96-8 Purity: ≥99%

  • Urea, ReagentPlus®, =99.5%, pellets

    Sigma-Aldrich

    Synonyms: Carbamide; Carbonyldiamide Formula: NH2CONH2 Formula Weight: 60.06 CAS No.: 57-13-6 Purity: ≥99.5% Density: 1.335 g/mL at 25 °C(lit.) Application: Used for the denaturation of proteins and as a mild solubilization agent for insoluble or…

  • Urea, ACS reagent, 99.0-100.5%

    Sigma-Aldrich

    Synonyms: Carbamide; Carbonyldiamide Formula: NH2CONH2 Formula Weight: 60.06 CAS No.: 57-13-6 Purity: 99.0-100.5% Density: 1.335 g/mL at 25 °C(lit.) Application: Used for the denaturation of proteins and as a mild solubilization agent for insoluble or…

  • Uracil =99.0%

    Sigma-Aldrich

    Synonym: 2,4(1 H ,3 H )-Pyrimidinedione, 2,4-Dihydroxypyrimidine, 2,4-Pyrimidinediol CAS Number: 66-22-8 Empirical Formula (Hill Notation: C4H4N2O2 Molecular Weight: 112.09 Beilstein Registry Number: 507828 EC Number: …

  • SIGMA Urethane >=99%

    Sigma-Aldrich

    Synonym(s): Carbamic acid ethyl ester; Ethyl carbamate; Ethylurethane Empirical Formula: C3H7NO2 Linear Formula: NH2COOC2H5 Formula Weight: 89.09 MDL Number: MFCD00007966 Purity: ≥99% Boiling Point: 182-184…

  • SIGMA U-73343 >=90%, powder

    Sigma-Aldrich

    Synonym(s): 1-[6-[((17β)-3-Methoxyestra-1,3,5[10]-trien-17-yl)amino]hexyl]-2,5-pyrrolidinedione Empirical Formula: C29H42N2O3 Linear Formula: C29H42N2O3 Formula Weight: 466.66 MDL Number: …

  • SIGMA Uric acid sodium salt

    Sigma-Aldrich

    Synonym(s): 2,6,8-Trihydroxypurine; Sodium acid urate Empirical Formula: C5H3N4NaO3 Linear Formula: C5H3N4O3Na Formula Weight: 190.09 MDL Number: MFCD00067310

  • ALDRICH 2-Undecanone, >=98%, FCC, FG

    Sigma-Aldrich

    Synonym(s): Methyl nonyl ketone Empirical Formula: C11H22O Linear Formula: CH3(CH2)8COCH3 Formula Weight: 170.29 MDL Number: MFCD00009583 Purity: ≥98% Boiling Point: 231-232 °C(lit.) Melting…

  • SIGMA UA62784 >=98% (HPLC)

    Sigma-Aldrich

    Synonym(s): 4-[5-(4-Methoxyphenyl)-2-oxazolyl]-9H-Fluoren-9-one Empirical Formula: C23H15NO3 Linear Formula: C23H15NO3 Formula Weight: 353.37 MDL Number: MFCD00489199 Purity: ≥98% (HPLC) Storage: 2-8°C

  • ALDRICH Umbelliferone, 99%

    Sigma-Aldrich

    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

  • ALDRICH Urea hydrogen peroxide, 97%

    Sigma-Aldrich

    Synonym(s): Hydrogen peroxide-Urea adduct; Carbamide Per hydrate; Carbamide peroxide; Percarbamide; Urea hydrogen peroxide Formula: CO(NH2)2 · H2O2 Formula Weight: 94.07 CAS No.: 124-43-6 UN Number: UN1511 Purity: 97% Application: …

  • ALDRICH Undecylamine, Greater Than or Equal to 98.0% (GC)

    Sigma-Aldrich

    Synonym(s): 1-Amino-undecane Formula: CH3(CH2)10NH2 Formula Weight: 171.32 CAS No.: 7307-55-3 Purity: ≥98.0% (GC) Density: 0.796g/mLat 25°C(lit.) Packaging: 10 mL in glass bottle

  • SIGMA UT-1

    Sigma-Aldrich

    Storage: −196°C

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