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  • 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…

  • 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: …

  • 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…

  • 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…

  • 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

  • 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.

  • SIGMA Orcein synthetic, certified by the Biological Stain Commission

    Sigma-Aldrich

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

  • 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 -+…

  • 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…

  • FLUKA ONPG Disks, for microbiology

    Sigma-Aldrich

    Synonyms: β-Galactosidase Test Disks; 2-Nitrophenyl-β-D-galactopyranoside Disks Storage Temperature: 2-8°C General description: ONPG Disks are used to detect the presence of β-galactosidase, an enzyme found in lactose-fermenting organisms. Lactose utilization depends upon two…

  • ALDRICH 3-Octanone, >=98%, FG

    Sigma-Aldrich

    Synonym(s): Ethyl amyl ketone; Ethyl pentyl ketone Empirical Formula: C8H16O Linear Formula: CH3(CH2)4COC2H5 Formula Weight: 128.21 MDL Number: MFCD00009515 Purity: ≥98% Boiling Point: …

  • SIGMA Ofloxacin fluoroquinolone antibiotic

    Sigma-Aldrich

    Empirical Formula: C18H20FN3O4 Linear Formula: C18H20FN3O4 Formula Weight: 361.37 MDL Number: MFCD00226105 Storage: 2-8°C

  • FLUKA Octinoxate, pharmaceutical secondary standard; traceable to USP

    Sigma-Aldrich

    Synonyms: 2-Ethylhexyl 4-methoxycinnamate; 4-Methoxycinnamic acid 2-ethylhexyl ester; OMC; Octyl methoxycinnamate Formula: C18H26O3 Formula Weight: 290.40 CAS No.: 5466-77-3

  • FLUKA Oxidase Test, for microbiology

    Sigma-Aldrich

    Application: Oxidase Test is an important differential procedure which should be performed on all gram-negative bacteria that are to be identified. In presence of the enzyme cytochrome oxidase (gram-negative bacteria) the N,N-dimethyl-p-phenylened iamine oxalate and α-naphthol react to…

  • FLUKA 3-Octanone

    Sigma-Aldrich

    analytical standard Synonym(s): Ethyl amyl ketone; Ethyl pentyl ketone Empirical Formula: C8H16O Formula Weight: 128.21 Linear Formula: CH3(CH2)4COC2H5 MDL Number: MFCD00009515 Boiling Point: …

  • ALDRICH 1,7-Octadiyne, 98%

    Sigma-Aldrich

    Formula: HC≡C(CH2)4C≡CH Formula Weight: 106.17 CAS No.: 871-84-1 UN Number: UN3295 Purity: 98% Density: 0.8g/mLat 25°C(lit.) Storage: 2-8°C Packaging: 10 g in glass bottle

  • ALDRICH 2,3,7,8,12,13,17,18-Octaethyl-21H,23H-porphine manganese(III) chloride,…

    Sigma-Aldrich

    Empirical Formula: C36H44ClMnN4 Linear Formula: C36H44ClMnN4 Formula Weight: 623.15 MDL Number: MFCD00074839 Purity: 97%

  • OXONE®, monopersulfate compound,

    Sigma-Aldrich

    Synonyms: Potassium peroxymonosulfate Formula: KHSO5 · 0.5KHSO4 · 0.5K2SO4 Formula Weight: 307.38 CAS No.: 70693-62-8 Application: A rapid, efficient synthesis of oxaziridines from imines using buffered OXONE has been reported. 1 Also used…

  • SIGMA Ochratoxin A from Petromyces albertensis, >=98% (HPLC)

    Sigma-Aldrich

    Synonym(s): N -[(3 R )-(5-Chloro-8-hydroxy-3-methyl-1-oxo-7-isochromanyl)carbonyl]-L-phenylalanine Empirical Formula: C20H18ClNO6 Linear Formula: C20H18ClNO6 Formula Weight: 403.81 MDL Number: MFCD00078079 Purity: …

  • SIGMA o-Phenylenediamine Peroxidase substrate, >=98.0%, powder

    Sigma-Aldrich

    Synonym(s): 1,2-Diaminobenzene; 1,2-Phenylenediamine; OPD Empirical Formula: C6H8N2 Linear Formula: C6H8N2 Formula Weight: 108.14 MDL Number: MFCD00007721 Purity: ≥98.0% Boiling Point: 256-258 °C …

  • SIGMA o-Phenylenediamine dihydrochloride tablet, 5 mg substrate per tablet

    Sigma-Aldrich

    Empirical Formula: C6H8N2 -+ 2HCl Linear Formula: C6H4(NH2)2-+2HCl Formula Weight: 181.06 MDL Number: MFCD00012966 Melting Point: 258 °C (dec.)(lit.) Storage: 2-8°C Beilstein Registry…

  • ALDRICH 4,4'-Oxydianiline, purified by sublimation, 99%

    Sigma-Aldrich

    Synonym(s): 4,4′-Diaminodiphenyl ether; 4-Aminophenyl ether Formula: O(C6H4NH2)2 Formula Weight: 200.24 CAS No.: 101-80-4 UN Number: UN3077 Purity: 99% Packaging: 1 g in glass bottle

  • FLUKA O-Ethylhydroxylamine hydrochloride

    Sigma-Aldrich

    for GC derivatization Synonym(s): Ethoxyamine hydrochloride Empirical Formula: C2H7NO -+ HCl Formula Weight: 97.54 Linear Formula: CH3CH2ONH2 -+ HCl MDL Number: MFCD00012956 Purity: 99.0-101.0 wt. % (AT) Melting Point: …

  • ALDRICH Oxetane-3-carboxylic acid

    Sigma-Aldrich

    Synonym(s): 3-Oxetanecarboxylic acid Empirical Formula: C4H6O3 Linear Formula: C4H6O3 Formula Weight: 102.09 Storage: −20°C

  • Octyl β-D-glucopyranoside, =98% (GC)

    Sigma-Aldrich

    Synonyms: n -Octyl glucoside; OGP Formula: C14H28O6 Formula Weight: 292.37 CAS No.: 29836-26-8 Purity: ≥98% (GC) Storage Temperature: −20°C Application: Non-ionic, dialyzable detergent for the solubilization and isolation of membrane…

  • Oil Red O certified by the Biological Stain Commission

    Sigma-Aldrich

    Synonym: 1-([4-(Xylylazo)xylyl]azo)-2-naphthol, 1-[2,5-Dimethyl-4-(2,5-dimethylphenylazo)phenylazo]-2-naphthol, Solvent Red 27 CAS Number: 1320-06-5 Empirical Formula (Hill Notation): C26H24N4O Molecular Weight: 408.49 Colour Index Number: 26125 …

  • SUPELCO 1-Octadecene

    Sigma-Aldrich

    analytical standard Empirical Formula: C18H36 Formula Weight: 252.48 Linear Formula: CH3(CH2)15CH=CH2 MDL Number: MFCD00009003 Boiling Point: 179 °C/15 mmHg(lit.);…

  • ALDRICH 4-Oxo-TEMPO-d16, free radical, for ESR-spectroscopy, 97 atom % D

    Sigma-Aldrich

    Synonym(s): 4-Oxo-,2,2,6,6-tetramethylpiperidine-d16-1-oxyl; TEMPONE-d16 Empirical Formula: C9D16NO2 Linear Formula: C9D16NO2 Formula Weight: 186.33 MDL Number: MFCD01075420 Melting Point: 35 °C(lit.)

  • ALDRICH 6-O-(tert-Butyldimethylsilyl)-D-galactal, 97%

    Sigma-Aldrich

    Empirical Formula: C12H24O4Si Linear Formula: C12H24O4Si Formula Weight: 260.40 MDL Number: MFCD09756159 Purity: 97% Refractive Index: n 20/D 1.476(lit.) Storage: −20°C

  • FLUKA Ondansetron Hydrochloride, pharmaceutical secondary standard; traceable to…

    Sigma-Aldrich

    Synonyms: Ondansetron hydrochloride dihydrate; 1,2,3,9-Tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-4H-carbazol-4-one hydrochloride; GR 38032F Formula: C18H19N3O · HCl · 2H2O Formula Weight: 365.85 CAS No.: 103639-04-9 Storage…

  • FLUKA 1-Octanol, analytical standard

    Sigma-Aldrich

    Synonyms: Alcohol C8; Capryl alcohol; Octyl alcohol Formula: CH3(CH2)7OH Formula Weight: 130.23 CAS No.: 111-87-5 Purity: ≥99.7% (GC) Density: 0.827 g/mL at 25 °C(lit.) Biochem/physiol Actions: Blocks T-type Ca 2+ channels

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