Reagents, Q

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  • ALDRICH 3-Quinolinecarboxaldehyde, 98%

    MilliporeSigma

    Empirical Formula: C10H7NO Linear Formula: C10H7NO Formula Weight: 157.17 MDL Number: MFCD00006768 Purity: 98% Melting Point: 68-71 °C(lit.) Beilstein Registry Number: 113269

  • ALDRICH 3-Quinolineboronic acid MIDA ester, 90%

    MilliporeSigma

    Synonym(s): -áQuinoline-3-boronic acid MIDA ester Empirical Formula: C14H13BN2O4 Linear Formula: C14H13BN2O4 Formula Weight: 284.08 MDL Number: MFCD22417209 Purity: 90% Melting Point: …

  • Quartz (particle size)

    MilliporeSigma

    BCR ® certified Reference Material, 1.20-20.00 μm particle size

  • ALDRICH 4-Quinolinecarboxaldehyde, 97%

    MilliporeSigma

    Synonym(s): Cinchoninaldehyde Formula: C10H7NO Formula Weight: 157.17 CAS No.: 4363-93-3 Purity: 97% Packaging: 2.5, 10 g in glass bottle

  • ALDRICH 2-Quinolinecarbonitrile, 97%

    MilliporeSigma

    Empirical Formula: C10H6N2 Linear Formula: C10H6N2 Formula Weight: 154.17 MDL Number: MFCD00134341 Purity: 97% Melting Point: 93-95 °C(lit.)

  • ALDRICH 8-Quinolinol hemisulfate salt, >=98.0% (dry substance, T), yellow

    MilliporeSigma

    Synonym(s): 8-Hydroxyquinoline hemisulfate salt Empirical Formula: C18H14N2O2 -+ H2SO4 Linear Formula: C18H14N2O2 -+ H2SO4 Formula Weight: 388.39 MDL…

  • Quinapril for system suitability

    MilliporeSigma

    European Pharmacopoeia (EP) Reference Standard Synonym(s): Quinapril hydrochloride; (3S)-2-[(2S)-2-[[(1S)-1-(Ethoxycarbonyl)-3-phenylpropyl]amino]-1-oxopropyl]-1,2,3,4-tetrahydro-3-isoquinolinecarboxylic acid hydrochloride Empirical Formula: …

  • Quinaldine, analytical standard, >=90% (GC)

    MilliporeSigma

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Synonyms: 2-Methylquinoline CAS Number: 91-63-4 Formula: C10H9N Formula Weight: 143.19 …

  • SIGMA Quinone Oxidoreductase 2 (NQO2) human recombinant, expressed in E. coli, >…

    MilliporeSigma

    Synonym(s): NQO2 human; NRH nitroreductase human; NRH quinone reductase human MDL Number: MFCD03458332 Purity: ≥90% (SDS-PAGE) Storage: −20°C

  • Quercitrin, primary pharmaceutical reference standard

    MilliporeSigma

    CAS No.: 522-12-3 Synonyms: Quercetin 3-rhamnoside Formula: C21H20O11 Formula Weight: 448.38 Linear Formula: C21H20O11 MDL No.: MFCD00016932

  • Quinine sulfate

    MilliporeSigma

    European Pharmacopoeia (EP) Reference Standard

  • ALDRICH Quinoxaline, >=95.0%

    MilliporeSigma

    Synonym(s): 1,4-Benzodiazine; Benzo[ a ]pyrazine; Benzopyrazine Empirical Formula: C8H6N2 Linear Formula: C8H6N2 Formula Weight: 130.15 MDL Number: MFCD00006719 Purity: ≥95.0% Boiling Point: …

  • ALDRICH 8-Quinolinol N-oxide, 98%

    MilliporeSigma

    Synonym(s): 8-Hydroxyquinoline N -oxide Formula: C9H7NO2 Formula Weight: 161.16 CAS No.: 1127-45-3 Purity: 98% Packaging: 5, 10 g in glass bottle

  • ALDRICH Quinaldine, Greater Than or Equal to 95.0% (GC)

    MilliporeSigma

    Synonym(s): 2-Methylquinoline Formula: C10H9N Formula Weight: 143.19 CAS No.: 91-63-4 Purity: ≥95.0% (GC) Density: 1.058g/mLat 25°C(lit.) Caution: may discolor to brown upon storage Packaging: 250 mL in glass bottle

  • Quartz (particle size)

    MilliporeSigma

    BCR ® certified Reference Material, 160-630 μm particle size

  • "Quercetin dihydrate, primary reference standard"

    MilliporeSigma

    Synonyms: 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4 H -1-benzopyran-4-one dihydrate; 3,3′,4′,5,7-Pentahydroxyflavone dihydrate Formula: C15H10O7 · 2H2O Formula Weight: 338.27 CAS No.: 6151-25-3 Application: Reference standard in…

  • SIGMA Quene 1-AM

    MilliporeSigma

    Synonym(s): 8-bis(Carboxymethyl)amino-2-[2-(2-bis(carboxymethyl)aminophenyl)ethenyl]-6-methoxyquinoline tetra(acetoxymethyl) ester Empirical Formula: C38H41N3O17 Linear Formula: C38H41N3O17 Formula…

  • Quercetin

    MilliporeSigma

    pharmaceutical secondary standard; traceable to USP, PhEur Synonym(s): Quercetin hydrate Empirical Formula: C15H10O7 -+ xH2O Formula Weight: 302.24 (anhydrous basis) Linear Formula: C15H10O7 -+ xH2O…

  • Quinine suitable for fluorescence, anhydrous, =98.0% (dried material, NT)

    MilliporeSigma

    CAS Number: 130-95-0 Empirical Formula (Hill Notation): C20H24N2O2 Molecular Weight: 324.42 Beilstein Registry Number: 91867 EC Number: 205-003-2 MDL Number: MFCD00198096 PubChem Substance ID: 24853550 …

  • Quartz (particle size)

    MilliporeSigma

    BCR ® certified Reference Material, 50-220 μm particle size

  • Quercetin

    MilliporeSigma

    United States Pharmacopeia (USP) Reference Standard Synonym(s): Quercetin dihydrate; 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4 H -1-benzopyran-4-one dihydrate; 3,3',4',5,7-Pentahydroxyflavone dihydrate Empirical Formula: C15H10O7 -+ 2H2O Formula…

  • Quercetin dihydrate

    MilliporeSigma

    European Pharmacopoeia (EP) Reference Standard Synonym(s): 2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4 H -1-benzopyran-4-one dihydrate; 3,3',4',5,7-Pentahydroxyflavone dihydrate Empirical Formula: C15H10O7 -+ 2H2O Formula Weight: 338.27 Linear…

  • SIGMA (-)-Quinpirole hydrochloride >=98% (HPLC), solid

    MilliporeSigma

    Synonym(s): (–)-Quinpirole monohydrochloride; trans -(–)-(4aR)-4,4a,5,6,7,8,8a,9-Octahydro-5-propyl-1H-pyrazolo[3,4-g]quinoline monohydrochloride; LY-171,555 Empirical Formula: C13H21N3 -+ HCl Linear Formula: …

  • Quinaldine phosphate salt

    MilliporeSigma

    analytical standard Synonym(s): 2-Methylquinoline Empirical Formula: C10H9N -+ H3O4P Formula Weight: 241.18 Linear Formula: C10H9N -+ H3PO4 MDL Number: MFCD00079536 Density: 1.06 g/mL(lit.)

  • Quinuclidine, 0.97

    MilliporeSigma

    NOTE: Due to special handling or shipping requirements, these products will have additional fees added during checkout. Click HERE for a description of what fees might be charged.   Synonyms: 1-Azabicyclo[2.2.2]octane; ABCO CAS Number: 100-76-5 Formula: C7H13N Formula…

  • ALDRICH Quinine, 90%

    MilliporeSigma

    Formula: C20H24N2O2 Formula Weight: 324.42 CAS No.: 130-95-0 Purity: 90% Application: Resolving agent for carboxylic acids. Catalyzes the kinetic resolution of furanones. Other Notes: remainder hydroquinine Packaging: 10, 50 g in poly bottle

  • ALDRICH Quinhydrone, 97%

    MilliporeSigma

    Synonym(s): Hydroquinone: benzoquinone 1:1 complex Formula: C6H4(OH)2 · C6H4O2 Formula Weight: 218.21 CAS No.: 106-34-3 UN Number: UN2811 Purity: 97% Packaging: 25, 100 g in poly bottle

  • SIGMA Quinine hemisulfate salt monohydrate synthetic, >=90% (HPLC)

    MilliporeSigma

    Synonym(s): Quinine sulfate (2:1) (salt) dihydrate Empirical Formula: C20H24N2O2 -+ 0.5H2O4S -+ H2O Linear Formula: C20H24N2O2 -+ 0.5H2O4S -+…

  • SIGMA Quinacrine mustard dihydrochloride >=85% (HPLC)

    MilliporeSigma

    Synonym(s): 2-Methoxy-6-chloro-9-(4-bis[β-chloroethyl]amino-1-methylbutylamino)acridine dihydrochloride; 9-[4-(Bis(2-chloroethyl)amino)-1-methylbutylamino]-6-chloro-2-methoxyacridine dihydrochloride Empirical Formula: C23H28Cl3N3O -+ 2HCl …

  • ALDRICH QuadraPure® AK, 50-90mesh, extent of labeling: 2.0-3.0mmol/g loading, 1%…

    MilliporeSigma

    Synonym(s): 2,4-Butanedione resin; Activated ketone, polymer-bound

  • SIGMA (±)-Quinuclidinyl benzilate powder

    MilliporeSigma

    Synonym(s): (±)-QNB; (±)-Quinuclidinyl α-hydroxydiphenylacetate Empirical Formula: C21H23NO3 Linear Formula: C21H23NO3 Formula Weight: 337.41 MDL Number: MFCD00055094 Storage: 2-8°C

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