1. Molecular Formula: C24H32O4S 2. Molecular Weight: 416.57 3. CAS: 52-01-7 4. EINECS: 200-133-6 Product Name SpironolactoneChemical Name 17-Hydroxy-7-alpha-mercapto-3-oxo-17-alpha-pregn-4-ene-21-carboxylic acid-gamma-lactone-7-acetateCAS Number 52-01-7Molecular Formula C24H32O4S Molecular Weight 416.57Storage Keep tightly closed in light-resistant containers Spironolactone is used as an antiandrogen. 

ITEMS	SPECIFICATION
Appearance	White or yellowish-white powder
Identification	Meets the requirements
Specific Rotation	-33°~ -37°
Loss on Drying	≤0.5%
Sulphated Ash	≤0.1%
Chromium	≤50ppm
Free Mercapto Compounds	Meets the requirements
Related Substances
Canrenone	≤1.0%
Total Impurities (Except Canrenone)	≤1.0%
Sum of Impurities and Canrenone	≤1.0%
Assay (on dried basis)	97.0 ~ 102.0%
Standard	EP5

Spironolactone, 52-01-7