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Home > Analytical Chemistry > Standard (Find 1884 items)

Analytical Chemistry

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Elementary Substance

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Standard

Terpin hydrate

(2451-01-6)
expectorant

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Dimethyl-POPOP

(3073-87-8)
As a scintillation phosphor.

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4-Octylphenol monoethoxylate

(2315-67-5)
A common enironmental pollutant showing weak estrogenic effects.Has been shown to cause harm to the male reproductive system of vertebrates in particular among aquatic species where gonadal intersex, altered sex ratios, and reduced gonad size has been observed.

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Ammeline

(645-92-1)
A related compound of Melamine.

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N,N′-Dipropylurea

(623-95-0)
Labelled N,N'-Dipropylurea (D492460). It is used in the synthesis of symmetrically N,N'-disubstituted aliphatic ureas as intermediates for antitumor drug

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Gliotoxin

(67-99-2)
Gliotoxin is a potent epithiodioxopiperazine mycotoxin produced by species of Gliocladium, Aspergillus and Penicillium. At the cellular level gliotoxin inhibits a broad range of unrelated mechanisms, including inhibition of chymotrypsin-like activity of the 20S proteasome and Ca2+ release from mitochondria, activation of transcription factor NF-κB in response to a variety of stimuli in T and B cells, anti-inflammatory activity, and inhibition of farnesyltransferase and geranylgeranyltransferase.

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Aflatoxin B2

(7220-81-7)
Aflatoxins are naturally occuring mycotoxins produced by various species of the mold Aspergillus, which can be found in legumes, corn, soybeans, rice, milk, and cheese. They are highly carcinogenic substances that are metabolized by the liver to a reactive epoxide intermediate, which produces adducts that modify DNA. Aflatoxin B1 induces transversion of G to T at codon 249 of the p53 tumor suppressor gene. This transversion is common in hepatocellular carcinoma patients living in regions with hi

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Aflatoxin M1

(6795-23-9)
An Aspergillus flavus metabolite. Aflatoxin M1 in milk as a secondary metabolite of the Aflatoxin B1 formed in moldy forages.It is cancerogenic, hepatotoxic, and immunosuppressive in animals and man.

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Pigment Red 1

(6410-10-2)
Determination of the residue of para-red in complex samples such as chili sauce and hot soy sauce

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4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanone

(64091-91-4)
This compound was present in the highest concentrations in smokeless tobacco out ofthe nitrosamines identified. It is likely to be important in the etiology of cancers of the lung, oral cavity, and pancreas in people who use tabacco products. Readily produces cancer in rats and hamsters. Carcinogen.

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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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