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Analytical Chemistry

Standard

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4-Chloro-2-methylaniline

(95-69-2)
Used as pesticide and pharmaceutical intermediate

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Fluorexon

(154071-48-4)
Fluorexon is used in the synthesis of vesicles for drug containment and delivery. Also used in liposome-based drug delivery involving antitumor ether lipids.

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Firocoxib

(189954-96-9)
A selective cyclooxygenase-2-(COX-2) inhibitor. Anti-inflammatory; analgesic.

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3-Carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxy

(2154-68-9)
The anionic form has been used to determine distribution coefficients of neutral solubilizates in anionic micelles

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Cyclohexylethylamine

(5459-93-8)
Intermediate in production of herbicides and pharmaceuticals.

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N-Methyldesloratadine

(38092-89-6)
An intermediate in the synthesis of Loratadine. Loratadine impurity.

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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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