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Home > Analytical Chemistry > Standard (Find 165 items)

Analytical Chemistry

Standard

2-Nitronaphthalene

(581-89-5)
yellow to brown crystalline powder or chunks

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2,4,6(1H,3H,5H)-Pyrimidinetrione, 1-methyl-5-(1-methyl-2-pentynyl)-5-(2-propenyl)-

(151-83-7)
Methohexital is a short-acting barbiturate used as a sedative. Methohexital is used an anesthetic for oral surgery and dentistry and is also used to induce anesthesia prior to electroconvulsive therapy (ECT). Methohexital is a Controlled Substance.

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2-[4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]phenyl]-2,2-dimethylacetic acid

(76811-98-8)
The oxo analogue of Fexofenadine (F322470); H1-histamine receptor antagonist and an active metabolite of Terfenadine (T114500).

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2,3,4-Trichlorophenol

(15950-66-0)
Needles (from benzene and ligroin) or light peach solid.

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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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