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  • 2-Nitrophenyl ß-D-galactopyranoside, =98% (enzymatic)

    Sigma-Aldrich

    Synonym: o-Nitrophenyl ß-D-galactopyranoside, ONPG CAS Number: 369-07-3 Empirical Formula (Hill Notation): C12H15NO8 Molecular Weight: 301.25 Beilstein Registry Number: 92207 EC Number: 206-716-1 MDL Number: …

  • COD Test Vials

    Bioscience, Inc.

    Micro-COD test method saves time and money Ideal for waste water effluent testing Faster than the BOD method Identify system upsets in as little as 15 minutes Use for NPDES reporting purposes- mercury versions are EPA approved Reads out directly in ppm on the SMART Colorimeter…

  • Ozone AccuVac® Ampules

    Hach

    For determination of Ozone by the Indigo method, using AccuVac® Ampules. Hach method 8311. Fast Easy Accurate Use them anywhere you need results.

  • 1-Octanesulfonic Acid, Sodium Salt, HPLC

    Avantor - J.T.Baker®

    For Ion-Pair Chromatography of Basic Compounds Formula: CH3(CH2)7SO3Na Formula Weight: 216.27 CAS Number: 5324-84-5

  • FLUKA Oxidase Strips, for microbiology

    Sigma-Aldrich

    Storage Temperature: 2-8°C General description: Diagnostic test for the detection of the cytochrome oxidase activity of microorganisms within 1 minute. Oxidase Test is an important differential procedure which should be performed on all gram-negative bacteria that are to be identified. In…

  • Oxidase Dropper Pk. 50

    BD

    Oxidase Reagent Droppers are used in the Kovacs oxidase test as a qualitative reaction in the identification of nonfermenters and miscellaneous gram-negative bacteria. Used in the identification of organisms which produce oxidase enzyme Oxidase Reagent Droppers contain 0.5 mL of a 1%…

  • ALDRICH Olive oil, extra virgin, Certified organic (NOP/EU)

    Sigma-Aldrich

    MDL Number: MFCD00131764 Density: 0.910 g/mL at 25 °C Refractive Index: n 20/D 1.469

  • 1-Octanol, 99%

    Alfa Aesar

    Synonym(s): Capryl alcohol, n-Octyl alcohol Formula: C8H18O Formula weight: 130.23 Purity: 99% CAS Number: 111-87-5 Harmonized Tariff Code:  2905.16 Hazard Statements: H315-H319-H227 Causes skin irritation. Causes serious eye irritation. Combustible liquid. Precautionary…

  • Oleic acid, tech. 90%

    Alfa Aesar

    Synonym(s): cis-9-Octadecenoic acid Formula: C18H34O2 Formula weight: 282.47 Purity: tech. 90% CAS Number: 112-80-1 Harmonized Tariff Code:  2916.15 Hazard Statements: H315-H319 Causes skin irritation. Causes serious eye irritation. Precautionary Statements: …

  • ALDRICH 1-Octene, 98%

    Sigma-Aldrich

    Formula: CH3(CH2)5CH=CH2 Formula Weight: 112.21 CAS No.: 111-66-0 UN Number: UN3295 Purity: 98% Density: 0.715g/mLat 25°C(lit.) Packaging: 100 mL in glass bottle

  • FLUKA Omeprazole

    Sigma-Aldrich

    analytical reference material Synonym(s): 5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1 H -benzimidazole; Antra; Losec Empirical Formula: C17H19N3O3S Formula Weight: 345.42 Linear Formula: …

  • 2-Octanone, analytical standard

    Sigma-Aldrich

    CAS No.: 111-13-7 Synonyms: Hexyl methyl ketone Formula: C8H16O Formula Weight: 128.21 Linear Formula: CH3(CH2)5COCH3 MDL No.: MFCD00009540 Purity: ≥99.5% (GC) Boiling Point: 173 °C(lit.) …

  • D(+)-Glucose, Monohydrate

    EMD Millipore

  • ALDRICH Octafluoronaphthalene, 96%

    Sigma-Aldrich

    Formula: C10F8 Formula Weight: 272.09 CAS No.: 313-72-4 Purity: 96% Packaging: 1 g in glass bottle

  • ALDRICH 2-Octanol, natural, >=97%, FG

    Sigma-Aldrich

    Synonym(s): sec -Caprylic alcohol; Capryl alcohol; Ethyl- N -amylcarbinol; Ethylpentylcarbinol Empirical Formula: C8H18O Linear Formula: CH3(CH2)5CH(OH)CH3 Formula Weight: 130.23 MDL Number: MFCD00004591 Purity: …

  • SIGMA Oleuropein >=98.0%

    Sigma-Aldrich

    Synonym(s): (2 S ,3 E ,4 S )-3-Ethylidene-2-(β-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2 H -pyran-4-acetic acid 2-(3,4-dihydroxyphenyl)ethyl ester Empirical Formula: C25H32O13 Linear Formula: C25H32O13

  • ALDRICH OXONE® tetrabutylammonium salt, technical, ~1.6% active oxygen basis

    Sigma-Aldrich

    Synonym(s): Tetrabutylammonium OXONE ® ; Tetrabutylammonium hydrogen monopersulfate; Tetrabutylammonium peroxomonosulfate; Tetrabutylammonium persulfate triple salt Purity: ~1.6% active oxygen basis Melting Point: 144-146 °C Beilstein Registry Number: 5199887

  • ALDRICH Oxalyl chloride, reagent grade, 98%

    Sigma-Aldrich

    Synonym(s): Ethanedioyl dichloride Formula: ClCOCOCl Formula Weight: 126.93 CAS No.: 79-37-8 UN Number: UN2922 Purity: 98% Density: 1.5g/mLat 20°C(lit.) Application: Reactant involved in: • Synthesis of N -heterocyclic ynones and ynediones, used to activate…

  • 1-Octadecyne, 98%

    GFS Chemicals

    CH3(CH2)15C≡CH CAS#: 629-89-0 F.W.: 250.47 This material is a solid when <26°C so it may require heating to transfer material.

  • O-Desmethyl-cis-tramadol hydrochloride solution

    Sigma-Aldrich

    1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material Synonym(s): Amino Acid Sequence: Empirical Formula: C15H24ClNO2 Formula Weight: 285.81 Linear Formula: C15H24ClNO2 MDL…

  • Bottle Oxford Medium Base 500G

    BD

    Description: Use with Modified Oxford Antimicrobic Supplement or Oxford Antimicrobic Supplement to isolate L. monocytogenes

  • FLUKA Olive oil, Ph Eur

    Sigma-Aldrich

    Synonyms: Olivae oleum virginale CAS No.: 8001-25-0 Biochem/physiol Actions: The health benefits of olive oil result from its higher proportion of monounsaturated fats, as well as its antioxidant constituents: hydroxytyrosol, oleuropein and oleocanthal.

  • OmniPur® Magnesium Chloride Solution, 1M

    EMD Millipore

  • SIGMA Orcein synthetic, certified by the Biological Stain Commission

    Sigma-Aldrich

    Synonym(s): Natural Red 28 MDL Number: MFCD00062310

  • Oxytetracycline, 98+%

    Alfa Aesar

    Formula: C22H24N2O9 Formula weight: 460.43 Purity: 98+% CAS Number: 79-57-2 Harmonized Tariff Code:  2941.30

  • FLUKA Oxford Listeria Selective Supplement

    Sigma-Aldrich

    for microbiology Storage: 2-8°C

  • SIGMA O-Acetyl-L-carnitine hydrochloride >=99% (titration), powder

    Sigma-Aldrich

    Synonym(s): ( R )-3-Acetoxy-4-(trimethylammonio)butyrate hydrochloride; ALC; ALCAR; R-(−)-2-Acetyloxy-3-carboxy- N,N,N -trimethyl-1-propanaminium chloride Empirical Formula: C9H17NO4 -+ HCl Linear Formula: C9H17NO4 -+…

  • Oxalic Acid, Dihydrate, Reagent (ACS)

    GFS Chemicals

  • FLUKA Optochin Disks, for microbiology

    Sigma-Aldrich

    Storage Temperature: 2-8°C General description: The optochin test is a useful diagnostic aid for identification/differenti ation of pneumococci and viridans streptococci. Optochin (ethyl hydrocuprein hydrochloride) is inhibitory for pneumococcal growth whereas other streptococci show good…

  • OmniPur™ CHLOROFORM

    EMD Millipore

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