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Home > Analytical Chemistry > Standard (Find 9 items)

Analytical Chemistry

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Elementary Substance

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Standard

Vardenafil dihydrochloride

(224789-15-5)
A selective phsphodiesterase type 5 (PDE5) inhibitor.

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VIOLURIC ACID MONOHYDRATE

(26351-19-9)
Spectrometric determination of cobalt

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Vaccenic acid

(693-72-1)
trans-Vaccenic acid is a precursor for the synthesis of saturated fatty acid in the rumen and of conjugated linoleic acid (CLA) at the tissue level.

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Verruculogen

(12771-72-1)
Verruculogen is a tremorgenic mycotoxin isolated from species of Penicillium, Aspergillus, and other fungi. It selectively inhibits the activation of Maxi-K potassium channels by charybdotoxin with a K1/2 value of 170 nM. Verruculogen also promotes the release of excitatory neurotransmitters when injected directly into the brain of rats and, at high doses, arrests mouse mammary carcinoma cells in M phase of the cell cycle (MIC = 12.2 μM).[Cayman Chemical]

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Vicine

(152-93-2)
Vicine, an alkaloid glycoside found mainly in fava beans, is toxic in individuals and may cause haemolytic anaemia[1].

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Source Standard Products Supply

Vedaprofen

(71109-09-6)
Propionic acid type non-steroidal anti-inflammatory drug (NSAID)

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Verbascose

(546-62-3)
Natural sugars, not digestible

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Vedaprofen-d3

(1185054-34-5)
Propionic acid type non-steroidal anti-inflammatory drug (NSAID)

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Vardenafil hydrochloride trihydrate

(330808-88-3)
Selective inhibitors of phosphodiesterase 5 (PDE5), which specifically hydrolyzes cGMP, are used to study signaling through the guanylate cyclase activator nitric oxide and to mediate smooth muscle relaxation and vasodilation triggered by cGMP. Vardenafil is a potent inhibitor of PDE5 (IC50 = 0.2-1.2 nM) that less effectively blocks the activities of PDE6, PDE1, and PDE11 (IC50s = 2, 230, and 130 nM, respectively). PDE5 inhibitors, including vardenafil, have applications in several conditions, i

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In the analysis work, it is often necessary to use a compound of good quality and accurate content, which is used as a comparison for detection control, or used to calibrate the instrument. This compound is called a standard. Or standard. The standard product refers to the standard substance used to determine the potency of biological products. The production department must provide the standard product expressed in units (μ) of its potency when it is approved as a quality standard for biological products. According to the application, the standard products for inspection can be divided into biological standard products for biological verification of biological products, endocrine drugs, antibiotics and so on.

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