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Analytical Chemistry

Standard

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Arachidonic acid

(506-32-1)
Arachidonic Acid is an essential fatty acid and a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes. Arachidonic Acid occurs in liver, brain, glandular organs, and depot fats of animals, in small amounts in human depot fats, and Arachidonic Acid is also a constituent of animal phosphatides.

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Clorsulon

(60200-06-8)
A benzenedisulfonamide derivative with fasciolicidal activity. Anthelmintic (Trematodes)

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2-Methylfuran

(534-22-5)
Used as a flavoring substance, with the potential for use in alternative fuels.

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Closantel

(57808-65-8)
antianginal, antihypertensive

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Isoxepac

(55453-87-7)
Non-steroidal anti-inflammatory with analgesic and antipyretic activity

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D-Malic acid

(636-61-3)
The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid rece

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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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