Chemicals Reagents V
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SRM 972A_cert Application: Vitamin D metabolites in frozen human serum has been used as a reference material for the calibration and standardization of 25-hydroxyvitamin D (25(OH)D) from dried blood spot samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Biochem Physiol…
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Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards Synonyms: Vinyl acetate; Acetoxyethylene Molecular Formula: C4H6O2 …
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Empirical Formula: C8H12O Linear Formula: C8H12O Formula Weight: 124.18 MDL Number: MFCD00022356 Purity: 98% Boiling Point: 169 °C(lit.) Density: 0.952 g/mL at 25 °C(lit.) Refractive Index: n 20/D…
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The Vent Filter is designed to protect highly sensitive stored pure water from possible contaminants in the environment. These include carbon dioxide, particles, micro-organisms and volatile organic compounds that mainly come from the laboratory atmosphere. When carbon dioxide dissolves in water,…
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Vancomycin hydrochloride United States Pharmacopeia (USP)
MilliporeSigmaThis product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including MSDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and…
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(^+)-Verapamil hydrochloride, 99+%
Thermo Scientific ChemicalsSynonym(s): Arpamyl Formula: C27H38N2O4 HCl Formula weight: 491.07 Purity: 99+% CAS Number: 152-11-4 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code: 2926.90 Hazard Statements: H301-H311-H331 Toxic if swallowed. Toxic in contact with skin.…
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Vitamin B12, =98%
MilliporeSigmaSynonym: α-(5,6-Dimethylbenzimidazolyl)cyanocobamide, CN-Cbl, Cyanocob(III)alamin, Cyanocobalamin CAS Number: 68-19-9 Empirical Formula (Hill Notation): C63H88CoN14O14P Molecular Weight: 1355.37 Beilstein Registry Number:…
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Visiprep(TM) Manifold Flow Control Valve
MilliporeSigmaManifold flow control valve are disposable liner flow control valves that are used as an accessory for 12 port or 24 port Visiprep manifolds. Application: Solid-phase extraction (SPE) experiments were performed using a Visiprep DL disposable-liner solid-phase extraction vacuum manifold with…
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Vitamin A palmitate, 1.7 M.I.U./g
Thermo Scientific ChemicalsSynonym(s): Retinyl palmitate, Retinol palmitate Formula: C36H60O2 Formula weight: 524.87 CAS Number: 79-81-2 Harmonized Tariff Code: 2936.21 Hazard Statements: H361 Suspected of damaging fertility or the unborn child. Precautionary Statements: …
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Vanadium Standard
Ultra Scientific1 Analyte(s) @ 10,000 µg/mL in water with dilute nitric and trace HF acids
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VD-DDC Mass Spect Gold(R) Serum
MilliporeSigmaVD-DDC Mass Spect Gold(R) is human plasma that is processed according to a validated process that removes the Vitamin D2 and Vitamin D3 to levels of Storage: -20C Application: Zero base or in preparation of controls, calibrators and standards for Immunoassays, GCMS and LCMS applications…
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Viscosity standard, Specpure r, nominally 930cSt @ 40° and 82cSt @ 100°
Thermo Scientific ChemicalsHarmonized Tariff Code: 3822.00
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Vanadium(IV) oxide phthalocyanine
Thermo Scientific ChemicalsFormula: C32H16N8OV Formula weight: 579.45 CAS Number: 13930-88-6 UN Number: UN3285 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code: 2933.99 Hazard Statements: H331-H302-H312 Toxic if inhaled. Harmful if swallowed. Harmful in contact with skin. Precautionary…
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1-Vinylimidazole, 99%
Thermo Scientific ChemicalsFormula: C5H6N2 Formula weight: 94.12 Purity: 99% CAS Number: 1072-63-5 UN Number: UN3267 Hazard Class: 8 Packing Group: III Harmonized Tariff Code: 2933.29 Hazard Statements: H301-H314-H318-H227 Toxic if swallowed. Causes severe skin burns and eye damage. Causes serious…
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Vinyltriphenylphosphonium bromide, 97%
Thermo Scientific ChemicalsSynonym(s): Schweizer's Reagent, Triphenylvinylphosphonium bromide Formula: CH2=CHP(C5H5)3Br Formula weight: 369.25 Purity: 97% CAS Number: 5044-52-0 Harmonized Tariff Code: 2931.90 Hazard Statements: H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May…
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ViaLight™ Plus BioAssay Kits are designed to provide unprecedented speed and sensitivity for cytotoxicity and cell proliferation studies. The ViaLight™ Assay incorporates bioluminescent detection of cellular ATP as a measure of viability. Measurement of ATP is the most accurate,…
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Visikol(R) HISTO(TM) Starter Kit
MilliporeSigmaWith the Visikol HISTO tissue clearing approach you are now able to rapidly and easily image tissues in 3D without damaging the underlying cellular morphology. The Visikol HISTO approach has been designed to pair with immunolabeling and is reversible so that 3D histology can be followed up with…
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Vitamin K1 2,3-epoxide >=98.0% (HPLC)
MilliporeSigmaSynonyms: (2,3-Epoxyphytyl)menaquinone; 1a,7a-Dihydro-1a-methyl-7a-(3,7,11,15-tetramethyl-2-hexadecenyl)naphth[2,3-b]oxirene-2,7-dione; 2,3-Epoxy-2,3-dihydro-2-methyl-3-phytyl-1,4-naphthoquinone; 2,3-Epoxyphylloquinone; Phylloquinone oxide Molecular Formula: C31H46O3 Molecular Weight: …
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SIGMA (±)-Vigabatrin
MilliporeSigmaSynonym(s): (R,S)-4-Amino-5-hexenoic acid; (±)-γ-Vinyl-GABA; (±)-4-Aminohexenoic acid Empirical Formula: C6H11NO2 Linear Formula: C6H11NO2 Formula Weight: 129.16 MDL Number: MFCD00274577
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Visiprep(TM) SPE Vacuum Manifold standard
MilliporeSigmaSPE is a form of chromatography, and, as with other chromatographic techniques, control of flow rate is critical for maintaining reproducible extractions. Unlike other vacuum manifolds, the Visiprep system contains a patented valve system that allows for precise flow control through each SPE tube…
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Vitamin K2-(MK-7)
MilliporeSigmaVitamin K2 (MK-7), also known as menaquinone-7, is a homolog of Vitamin K2. Reports suggest that supplementation of Vitamin K2 (MK-7) can improve bone strength and prevent bone loss. Synonyms: …
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VE-821 >=98% (HPLC)
MilliporeSigmaSynonyms: 3-Amino-6-(4-(methylsulfonyl)phenyl)-N-phenylpyrazine-2-carboxamide; 3-Amino-6-[4-(methylsulfonyl)phenyl]-N-phenyl-2-pyrazinecarboxamide; VE821 Molecular Formula: C18H16N4O3S Molecular Weight: 368.41 Linear Structural Formula: C18H16N4O3S MDL Number: MFCD19443686 …
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Vitronectin, Human Purified Protein
MilliporeSigmaVitronectin (S-protein) is a multi-functional plasma and extracellular matrix protein with defined activity in cell adhesion, thrombosis, complement activation, fibrinolysis, inflammation, and platelet adhesion. Vitronectin binds to other macromolecules and participates in regulatory circuits to…
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VU0463271 >=98% (HPLC)
MilliporeSigmaSynonyms: N-Cyclopropyl-N-(4-methyl-2-thiazolyl)-2-[(6-phenyl-3-pyridazinyl)thio]-acetamide; N-Cyclopropyl-N-(4-methyl-2-thiazolyl)-2-[(6-phenyl-3-pyridazinyl)thio]acetamide; N-Cyclopropyl-N-(4-methylthiazol-2-yl)-2-(6-phenylpyridazin-3-ylthio)acetamide Molecular Formula: C19H18N4OS2 …
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VIP® Gold EHEC BioControl, Lateral flow test
MilliporeSigmaVIP® Gold for EHEC is a single-step visual immunoassay for the detection of E. coli O157:H7 in a variety of foods including dairy products, meats and poultry, fruits and vegetables, nutmeats, seafood, pasta, and liquid eggs using an 18 - 28 h enrichment protocol. It is applicable to detection of E.…
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Vidarabine monohydrate
MilliporeSigmaMolecular Formula: C10H15N5O5 Molecular Weight: 285.26 Linear Structural Formula: C10H15N5O5 MDL Number: MFCD00150980 Other Notes: Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of unique chemicals. Sigma-Aldrich does not…
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Vernolat PESTANAL(R), analytical standard
MilliporeSigmaSynonyms: S-Propyl dipropylthiocarbamate Molecular Formula: C10H21NOS Molecular Weight: 203.34 Linear Structural Formula: C10H21NOS MDL Number: MFCD00078733 Application: Vernolat is an herbicide, also known as S-Propyl dipropylthiocarbamate. It is a thiocarbamate compound that…