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Home > Analytical Chemistry > Standard (Find 98 items)

Analytical Chemistry

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Elementary Substance

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Standard

Azoxybenzene

(495-48-7)
Organic synthesis intermediate.

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alpha-Ethyl-2-oxo-1-pyrrolidineacetic acid

(67118-31-4)
Etiracetam (E932970) intermediate.

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Aflatoxin B1

(1162-65-8)
Aflatoxin B1 is the major analogue of a family of bisfuranocoumarin mycotoxins produced by Aspergillus flavus and related species. Aflatoxin B1 exhibits a distinctive UV spectrum and blue fluorescence. Aflatoxins are among the most potent mycotoxins known but are in fact "pre-toxins", requiring metabolic activation to the toxic principle. Aflatoxins are found widely in nature in trace amounts, particularly in grains and nuts. The toxicity of these metabolites was first recognised in the 1950s an

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Ammelide

(645-93-2)
A related compound of Melamine.

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Allidochlor

(93-71-0)
Pre-emergent herbicide. Selective preemergence herbicide used to control annual grass weeds and some broad-leaved weeds in maize, millet, soybeans, sorghum, sugarcane, vegetables and ornamentals.

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Antazoline phosphate

(154-68-7)
Antazoline Phosphate acts as a histamine H1 receptor blocker, functioning as an antihistamine pharmaceutical.

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Albendazole sulfone

(75184-71-3)
A metabolite of Albendazole, an anthelmintic

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Ammeline

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

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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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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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