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Reagents, Q

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  • SIAL Quinaldine Red

    Sigma-Aldrich

    Dye content 95 % Synonym(s): 2-(4-Dimethylaminostyryl)-1-ethylquinolinium iodide Empirical Formula: C21H23IN2 Formula Weight: 430.33 Linear Formula: C21H23IN2 MDL Number: MFCD00011968 Beilstein Registry…

  • SUPELCO QTM PAH Mix

    Sigma-Aldrich

    certified reference material, 2000 μg/mL each component in dichloromethane, ampule of 1 mL Components: Acenaphthene; Acenaphthylene; Anthracene; Benz[ a ]anthracene; Benzo[ b ]fluoranthene; Benzo[ ghi ]fluoranthene; Benzo(a)pyrene; 2-Bromonaphthalene; Chrysene; Dibenz[ a , h…

  • QAC Reagent 1 Powder Pillows

    Hach

    For determination of Quaternary Ammonium Compounds (QAC) by the Direct Binary Complex Method. Hach Method 8337. Range: 0.2 - 5.0 mg/L as CTAB. Pack of 50 Powder Pillows.

  • QAC Reagent 2 Powder Pillows

    Hach

    For determination of Quaternary Ammonium Compounds (QAC) by the Direct Binary Complex Method. Hach Method 8337. Range: 0.2 - 5.0 mg/L as CTAB. Pack of 25 Powder Pillows.

  • Quinine, anhydrous, 99% (total base), may cont. up to 5% dihydroquinine

    Alfa Aesar

    Formula: C20H24N2O2 Formula weight: 324.42 Purity: 99% (total base), may cont. up to 5% dihydroquinine CAS Number: 130-95-0 Harmonized Tariff Code:  2939.20 Hazard Statements: H301-H334-H315-H319-H317-H335 Toxic if swallowed. May cause allergy or asthma symptoms or breathing…

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

    Sigma-Aldrich

    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: …

  • SIGMA Quinoline Yellow for microscopy (Hist.), mixture of mono- and disulfonic…

    Sigma-Aldrich

    Synonym(s): Acid Yellow 3

  • (-)-Quinine For Resolution Of Racemates For Synthesis

    EMD Millipore

    CAS No.: 130-95-0 pH: 9.0 (0.5 g/l, H2O, 20°C) Solubility: 0.5 g/l (20°C) Melting Point: 174 - 178°C (decomposition) Molar Mass: 324.43 g/mol Bulk Density: 110 - 140 kg/m3

  • Quinacrine dihydrochloride >=90%

    Sigma-Aldrich

    Synonym(s): 6-Chloro-9-(4-diethylamino-1-methylbutylamino)-2-methoxyacridine dihydrochloride; Atebrin dihydrochloride; Mepacrine dihydrochloride Empirical Formula: C23H30ClN3O -+ 2HCl Linear Formula: C23H30ClN3O -+ 2HCl …

  • ALDRICH QuadraPure® Metal Scavengers Kit II

    Sigma-Aldrich

  • ALDRICH 2,8-Quinolinediol, >=99.0% (HPLC)

    Sigma-Aldrich

    Synonym(s): 2,8-Dihydroxyquinoline Empirical Formula: C9H7NO2 Linear Formula: C9H7NO2 Formula Weight: 161.16 MDL Number: MFCD00216696 Purity: ≥99.0% (HPLC) Melting Point: ~290 °C (dec.) …

  • SIGMA (±)-Quinpirole dihydrochloride powder

    Sigma-Aldrich

    Synonym(s): trans -(±)-4,4a,5,6,7,8,8a,9-Octahydro-5-propyl-1H-pyrazolo[3,4-g]quinoline dihydrochloride; LY-141,865 Empirical Formula: C13H21N3 -+ 2HCl Linear Formula: C13H21N3 -+ 2HCl Formula Weight: 292.25 MDL…

  • SIGMA Quercetin-3-D-xyloside >=97.0% (HPLC)

    Sigma-Aldrich

    Synonym(s): Reinutrin; Reynoutrin Empirical Formula: C20H18O11 Linear Formula: C20H18O11 Formula Weight: 434.35 MDL Number: MFCD00210590 Purity: ≥97.0% (HPLC) Beilstein Registry Number: 6023007

  • ALDRICH 3-Quinuclidinol, 99%

    Sigma-Aldrich

    Synonym(s): 1-Azabicyclo[2.2.2]octan-3-ol; 3-Hydroxyquinuclidine Empirical Formula: C7H13NO Linear Formula: C7H13NO Formula Weight: 127.18 MDL Number: MFCD00151326 Purity: 99% Melting Point: 220-223 °C(lit.) Beilstein…

  • ALDRICH Quinidine, crystallized, >=98.0% (dried material, NT)

    Sigma-Aldrich

    Empirical Formula: C20H24N2O2 Linear Formula: C20H24N2O2 Formula Weight: 324.42 MDL Number: MFCD00135581 Purity: ≥98.0% (dried material, NT) Melting Point: 168-172 °C(lit.) …

  • SIGMA Q Sepharose® Fast Flow preswollen, 45-165 µm (wet), exclusion limit ~4,000…

    Sigma-Aldrich

    Synonym(s): Q Sepharose ® MDL Number: MFCD00165625 Storage: 2-8°C

  • Quinine hemisulfate monohydrate, 99%

    Alfa Aesar

    Synonym(s): Quinine sulfate dihydrate Formula: C20H24N2O2 0.5H2SO4 H2O Formula weight: 391.47 (373.46anhy) Purity: 99% CAS Number: 6119-70-6 Harmonized Tariff Code:  2939.20 Hazard Statements: H301-H334-H317 Toxic if swallowed. May cause allergy or asthma symptoms or breathing…

  • Potassium Hydroxide, Pellets, Reagent, A.C.S.

    Electron Microscopy Sciences

    KOH Formula Weight: 56.11 CAS #: 1310-58-3 Assay: >85.0% Water contains: 10-15%

  • SIAL Quinine sulfate

    Sigma-Aldrich

    meets USP testing specifications, monograph mol wt. 782.94 ((C20H24N2O2)2 . H2SO4 . 2H2O) Synonym(s): Quinine hemisulfate salt monohydrate; Quinine sulfate (2:1) (salt) dihydrate Empirical Formula: …

  • (+)-Quinidine

    Alfa Aesar

    Formula: C20H24N2O2 Formula weight: 324.42 CAS Number: 56-54-2 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2939.20 Hazard Statements: H301 Toxic if swallowed. Precautionary Statements: P264-P270-P301+P310-P321-P405-P501a Wash thoroughly…

  • ALDRICH Quinine monohydrochloride dihydrate, 90%

    Sigma-Aldrich

    Synonym(s): Quinine hydrochloride dihydrate Formula: C20H24N2O2 · HCl · 2H2O Formula Weight: 396.91 CAS No.: 6119-47-7 Purity: 90% Other Notes: Remainder hydroquinine hydrochloride dihydrate Packaging: 10, 50 g in poly bottle

  • Quinhydrone, 97%

    Alfa Aesar

    Synonym(s): p-Benzoquinone hydroquinone complex Formula: C12H10O4 Formula weight: 218.21 Purity: 97% CAS Number: 106-34-3 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2942.00 Hazard Statements: H302-H315-H319-H335 Harmful if swallowed.…

  • ALDRICH Quinoline, >=97%

    Sigma-Aldrich

    Synonym(s): 1-Benzazine; 2,3-Benzopyridine Empirical Formula: C9H7N Linear Formula: C9H7N Formula Weight: 129.16 MDL Number: MFCD00006736 Purity: ≥97% Boiling Point: 113-114 °C/11 mmHg(lit.);…

  • ALDRICH Quinizarin, 96%

    Sigma-Aldrich

    Synonym(s): 1,4-Dihydroxyanthraquinone Empirical Formula: C14H8O4 Linear Formula: C14H8O4 Formula Weight: 240.21 MDL Number: MFCD00001209 Purity: 96% Melting Point: 198-199 °C(lit.) Beilstein Registry…

  • 6-Quinolineboronic acid pinacol ester, 97%

    Sigma-Aldrich

    CAS No.: 406463-06-7 Synonyms: 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)quinoline; 6-Quinolylboronic acid pinacol ester Formula: C15H18BNO2 Formula Weight: 255.12 Linear Formula: C15H18BNO2 MDL No.: MFCD06411327…

  • FLUKA Quartz (particle size)

    Sigma-Aldrich

    BCR ® certified Reference Material, 1400-5000 particle size

  • FLUKA Quercetin dihydrate, primary reference standard

    Sigma-Aldrich

    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…

  • Quercetin dihydrate, 97%

    Alfa Aesar

    Synonym(s): 3,3',4',5,7-Pentahydroxyflavone dihydrate, Quercetin hydrate Formula: C15H10O7 2H2O Formula weight: 338.28 (302.25anhy) Purity: 97% CAS Number: 6151-25-3 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2932.99 Hazard Statements:…

  • Quinoline-4-carboxylic acid, 98+%

    Alfa Aesar

    Synonym(s): Cinchoninic acid Formula: C10H7NO2 Formula weight: 173.17 Purity: 98+% CAS Number: 486-74-8 Harmonized Tariff Code:  2933.49 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. Precautionary…

  • SIGMA Quercetin 3-glucuronide >=95% (LC/MS-ELSD)

    Sigma-Aldrich

    Synonym(s): Quercetin 3-glucuronide; Quercetol 3-O-glucuronide; Quercetol glucuronide; Querciturone; 3,3',4',5,7-Pentahydroxyflavone 3-glucuronide; Mikwelianin; Miquelianin; Quercetin 3- O -β-D-glucuronide; Querciturone Empirical Formula: C21H18O13 Linear…

  • SUPELCO Quaternary B-cyclodextrin, 100mg, neat

    Sigma-Aldrich

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