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  • FLUKA Kligler Agar

    Sigma-Aldrich

    for microbiology Synonym(s): Kligler Iron Agar

  • SIGMA Kaempferol >=97.0% (HPLC)

    Sigma-Aldrich

    Synonym(s): 3,4',5,7-Tetrahydroxyflavone; 3,5,7-Trihydroxy-2-(4-hydroxyphenyl)-4 H -1-benzopyran-4-one; Robigenin Empirical Formula: C15H10O6 Linear Formula: C15H10O6 Formula Weight: 286.24 MDL Number: MFCD00016938 …

  • SIGMA Ketone Body Assay sufficient for 200 tests (UV)

    Sigma-Aldrich

    Storage: −20°C

  • Kanamycin disulfate salt from Streptomyces kanamyceticus aminoglycoside…

    Sigma-Aldrich

    Synonym: Kanamycin A, Kanamycin acid sulfate CAS Number 64013-70-3 MDL number MFCD00143916 Preparation Note Kanamycin acid sulfate is prepared by solubilizing kanamycin sulfate in dilute sulfuric acid and drying. The sulfate content is approximately 25%. Application …

  • SUPELCO Korean Drinking Water VOC Mix A

    Sigma-Aldrich

    certified reference material, 100 μg/mL each component in methanol, ampule of  mL Synonym(s): KDWR VOC Mix A Components: Benzene; Bromodichloromethane; Bromoform; Carbon tetrachloride; Chloroform; Chloroform; 1,1-Dichloroethylene; Ethylbenzene; Dichloromethane; Phenol;…

  • SUPELCO Kieselguhr, calcined, purified

    Sigma-Aldrich

    Synonyms: Infusorial earth CAS No.: 91053-39-3

  • Kovac's reagent for indoles, for microbiology

    Sigma-Aldrich

    CAS No.: 100-10-7 Synonyms: 4-(Dimethylamino)benzaldehyde solution; Indole reagent according to Kovac Formula: C9H11NO Formula Weight: 149.19 Linear Formula: C9H11NO MDL No.: MFCD00003381 Flash Point (F): 96.8 °F Flash Point…

  • FLUKA KF-Streptococcus Agar

    Sigma-Aldrich

    for microbiology Synonym(s): Kenner Fecal Agar

  • FLUKA Ketoconazole

    Sigma-Aldrich

    pharmaceutical secondary standard; traceable to USP and PhEur Synonym(s): Ketoconazole; (±)- cis -1-Acetyl-4-(4-[(2-[2,4-dichlorophenyl]-2-[1H-imidazol-1-ylmethyl]-1,3-dioxolan-4-yl)-methoxy]phenyl)piperazine Empirical Formula: …

  • FLUKA Kovac's reagent for indoles

    Sigma-Aldrich

    for microbiology Synonym(s): 4-(Dimethylamino)benzaldehyde solution Empirical Formula: C9H11NO Formula Weight: 149.19 Linear Formula: C9H11NO MDL Number: MFCD00003381 Storage: 2-8°C Beilstein Registry Number: 4132845 RIDADR:…

  • SIGMA Kolliphor® ELP

    Sigma-Aldrich

    Synonym(s): Cremophor ® ELP; PEG-35 castor oil; Polyoxyl 35 Hydrogenated Castor oil; Polyoxyl-35 castor oil MDL Number: MFCD00130879

  • Kollidon® 25

    Sigma-Aldrich

    CAS No.: 9003-39-8 Synonyms: Polyvinylpyrrolidone; PVP; Polyvidone; Povidone Linear Formula: (C6H9NO)n MDL No.: MFCD00149016

  • SIGMA Kollidon® SR

    Sigma-Aldrich

    Synonym(s): Polyvinyl acetate-Polyvinylpyrrolidone mixture MDL Number:

  • FLUKA Karl Fischer reagent solution A

    Sigma-Aldrich

    for pyridine-based volumetric KF titration (pyridine, sulfur dioxide, methanol) Density: ~1.01 g/mL Storage: 2-8°C RIDADR: UN 1992 3/PG 2 Included Fees: C955Q41 has a Small Barrier Pack Fee included in the price. To see the value of these fees, download our Fee List.

  • Kollisolv® PEG E 400

    Sigma-Aldrich

    CAS No.: 25322-68-3 Synonyms: Poly(ethylene glycol); Lutrol ® E 400; Macrogol 400; Polyethylene glycol 400; PEG Linear Formula: H(OCH2CH2)nOH MDL No.: MFCD00081839

  • Kinetin BioReagent, plant cell culture tested, amorphous powder

    Sigma-Aldrich

    Synonym: 6-Furfurylaminopurine, N 6 -Furfuryladenine CAS Number: 525-79-1 Empirical Formula (Hill Notation): C10H9N5O Molecular Weight: 215.21 Beilstein Registry Number: 21703 EC Number: 208-382-2 MDL Number: MFCD00075757 …

  • SIGMA Kinetin plant cell culture tested, crystalline

    Sigma-Aldrich

    Synonym(s): 6-Furfurylaminopurine; N 6 -Furfuryladenine Empirical Formula: C10H9N5O Linear Formula: C10H9N5O Formula Weight: 215.21 MDL Number: MFCD00075757 Melting Point: 264-270 °C (dec.)(lit.) Beilstein…

  • FLUKA Kjeldahl Catalyst

    Sigma-Aldrich

    free of Hg and Se, tablets (2.5 g) MDL Number: MFCD00144529 RIDADR: UN 3077 9 / PGIII

  • SIGMA K-Carrageenan sulfated plant polysaccharide

    Sigma-Aldrich

    Synonym(s): Vegetable gelatin MDL Number: MFCD00151514

  • SUPELCO Kieselguhr

    Sigma-Aldrich

    calcined, purified Synonym(s): Infusorial earth MDL Number: MFCD00132803

  • FLUKA Ketobemidone impurity C

    Sigma-Aldrich

    European Pharmacopoeia (EP) Reference Standard Synonym(s): 1-[4-(3-Hydroxyphenyl)piperidin-4-yl]propan-1-one Empirical Formula: C14H19NO2 Formula Weight: 233.31 Linear Formula: C14H19NO2

  • SIAL Kerosene

    Sigma-Aldrich

    purum MDL Number: MFCD00135561 Boiling Point: 175-325 °C(lit.); 190-250 °C Density: 0.8 g/mL at 25 °C(lit.) Refractive Index: n 20/D 1.436 RTECS No.: OA5500000 RIDADR: UN 1223 3 / PGIII

  • SIGMA Ketamine hydrochloride/xylazine hydrochloride solution

    Sigma-Aldrich

    MDL Number: MFCD00798875 Storage: 2-8°C Included Fees: C962Z22 has an additional DEA Fee not included in the price. To see the value of these fees, download our Fee List.

  • KARPAS 299

    Sigma-Aldrich

    Included Fees: C941H42 has a Dry/Wet Ice Fee included in the price. C941H43 has a Dry/Wet Ice Fee included in the price. C941H44 has a Dry/Wet Ice Fee included in the price. C941H41 has a Dry/Wet Ice Fee included in the price. To see the value of these fees, download our Fee List.

  • Kanamycin sulfate, United States Pharmacopeia (USP) Reference Standard

    Sigma-Aldrich

    CAS No.: 25389-94-0 Synonyms: Kanamycin A sulfate salt Formula: C18H36N4O11 ¬? H2O4S Formula Weight: 582.58 Linear Formula: C18H36N4O11 ¬? H2O4S

  • SIGMA Kanamycin disulfate salt from Streptomyces kanamyceticus aminoglycoside…

    Sigma-Aldrich

    Synonym(s): Kanamycin A; Kanamycin acid sulfate MDL Number: MFCD00143916

  • FLUKA Klebsiella Selective Supplement

    Sigma-Aldrich

    for microbiology Synonym(s): Carbenicillin; α-Carboxybenzylpenicillin solution Empirical Formula: C17H18N2O6S Formula Weight: 378.40 Linear Formula: C17H18N2O6S MDL Number: MFCD00242604 …

  • Ketoprofen Related Compound D hydrochloride, United States Pharmacopeia (USP)…

    Sigma-Aldrich

    CAS No.: 66067-44-5 Synonyms: 1-(3-Benzoylphenyl)ethanone; 3-Acetylbenzophenone Formula: C15H12O2 Formula Weight: 224.25 Linear Formula: C15H12O2

  • SIGMA Kolliphor® HS 15

    Sigma-Aldrich

    Synonym(s): Macrogol (15)-hydroxystearate; Polyethylene glycol (15)-hydroxystearate; Polyoxyethylated 12-hydroxystearic acid; Solutol ® HS 15

  • 2-Ketobutyric acid-4-13C,4-d sodium salt hydrate, 99 atom % 13C, 97 atom % D, 98…

    Sigma-Aldrich

    Synonyms: α-Ketobutyric acid-4- 13 C,4-d sodium salt; 2-Oxobutanoic acid-4- 13 C,4-d sodium salt; Sodium α-ketobutyrate-4- 13 C,4-d Formula: 13 CC3DH4NaO3 ¬? xH2O Formula Weight: 126.07 (anhydrous basis) Linear Formula: 13…

  • SIGMA KNK437 >=98% (HPLC)

    Sigma-Aldrich

    Synonym(s): 3-(1,3-Benzodioxol-5-ylmethylene)-2-oxo-1-pyrrolidinecarboxaldehyde Empirical Formula: C13H11NO4 Linear Formula: C13H11NO4 Formula Weight: 245.23 Purity: ≥98% (HPLC) Storage: room temp

  • Ko143 hydrate =98% (HPLC)

    Sigma-Aldrich

    Synonym: (3S,6S,12aS)-1,2,3,4,6,7,12,12a-Octahydro-9-methoxy-6-( 2-methylpropyl)-1,4-dioxopyrazino[1',2':1,6]pyrido[3,4- b]indole-3-propanoic acid 1,1-dimethylethyl ester hydrate CAS Number: 461054-93-3 (anhydrous) Empirical Formula (Hill Notation): …

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