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Home > Analytical Chemistry > Standard (Find 1884 items)

Analytical Chemistry

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Elementary Substance

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Standard

m-Toluidine

(108-44-1)
Dyes, manufacture of organic chemicals. m-Toluidine is an intermediate in the manu facture of dyes and other chemicals.

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4-Methylimidazole

(822-36-6)
4-Methylimidazole is a monomethylated imidazole that can be used as a building block in the preparation of a wide range of biologically active compounds. 4-Methylimidazole is a product which results from the interaction of reducing sugars with ammonia. 4-Methylimidazole showed convulsant activity in animals and is listed as a possible carcinogen.

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Tempo

(2564-83-2)
TEMPO(2,2,6,6-Tetramethylpiperidinooxy) is a stable radical prepared through the oxidation of 2,2,6,6-tetramethylpiperidine. TEMPO has a wide range of applications including use as a free radical scavenger, a reagent in organic synthe sis and as a structural probe in electron spin resonance spectroscopy. TEMPO can also be used as a mediator in free radical polymerization. In organic chemistry as a radical trap, 2,2,6,6-Tetramethylpiperidinooxy can be used as a catalyst and in polymerization me

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Quizalofop

(76578-12-6)

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4-Methylbenzophenone

(134-84-9)
Benzophenone estrogenicity toxicity structure activity.

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Cervonic acid

(6217-54-5)
Omega-3 fatty acid found in marine fish oils and in many phospholipids. Major structural component of excitable membranes of the retina and brain; synthesized in the liver from a-linolenic acid. Nutritional supplement.

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p-Aminoacetophenone

(99-92-3)
A novel utilization of aminophenone derivative in toxicology, for treating intoxications with cyanogenic toxic substances.

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Androstane

(438-22-2)

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4,4′-Diaminodiphenyl

(92-87-5)
Potentially mutagenic compound.

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Isatin

(91-56-5)
manufacture of vat dyes.In analytical chemistry as a reagent for cuprous ions, mercaptans, thiophene, and indican.

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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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