- Category :
Pharmaceuticals and Biochemicals/Hormones and synthetic substitutes
- CAS NO : 378-44-9
- EC NO : 206-825-4
- Molecular Formula : C22H29FO5
- Main Specifications :
- Synonyms : Betamethasone base;9a-fluoro-11b,17a,21-trihydroxy-16b-methylpregna-1,4-diene-3,20-dione;9alpha-fluoro-16beta-methylprednisolone;9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione;(11beta,16alpha)-9-fluoro-11,17,21-trihydroxy-16-methylpregna-1,4-diene-3,20-dione;
Package: 1kg/tin, 2kg/tin,5/tin
Molecular Structure:
Product description:
Product：Betamethasone
Category: adrenocortical hormone APIs
Quality standard: CP/BP/USP/EP
Specification: 1kg/tin, 2kg/tin,5/tin
Product name: Betamethasone
Chemical name: 9a-fluoro-11b,17a,21-trihydroxy-16b-methylpregna-1,4-diene-3,20-dione
Category: adrenocortical hormone APIs
Specifications: 1kg/tin
Standard: CP/BP/USP/EP
Approval number: Chinese Drug Approval Number H20055125
Quality standard: Chinese Pharmacopoeia 2015 edition
Properties: white or off-white crystalline powder; no odor.
Identification: positive reaction
Melting point: 236℃~244℃.
Specific rotation: +115º~+121º.
Absorbance: 382~406.
Related substances maximum impurity≤1.0％, other single impurities≤0.5％, total impurities≤2.0％.
Drying loss: ≤0.5%.
Residue on ignition: ≤0.1%.
Microbial limit: total amount of aerobe≤103cfu/g; mould and yeast≤102cfu/g; no escherichia coli can be detected.
Content: C22H29FO5 in dry product is 97.0%~103.0%.
Storage: the product should be tightly sealed and kept in shading place.
Chemical structural formula:
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