Pharm-Rx Spironolactone USP

Chemical Name: Spironolactone

CAS Number: 52-01-7

Certifications & Compliance: United States Pharmacopeia (USP)

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    Enhanced TDS

    Identification & Functionality

    Chemical Name
    Molecular formula
    Product Families
    Chemical Structure

    Pharm-Rx Sodium Picosulfate USP - Chemical Structure - 1


    Spironolactone contains NLT 97.0% and NMT 103.0% of spironolactone (C₂₄H₃₂O₄S), calculated on the dried basis.

    Applications & Uses


    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight416.57--

    Regulatory & Compliance

    Certifications & Compliance
    FDA Disclaimer

    These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

    USP Reference Standards
    • USP Spironolactone RS
    • USP Spironolactone Related Compound A RS
    • 2′R)-3′,4′-Dihydro-5′H-spiro[androst-4,6-diene-17,2′- furan]-3,5′-dione. C₂₂H₂₈O₃ 340.46 USP Spironolactone Related Compound B RS
    • 2′R)-7α-(Acetylthio)-5′H-spiro[androst-4-ene-17,2′- furan]-3,5′-dione. C₂₄H₃₀O₄S 414.56
    • USP Spironolactone Related Compound C RS (2′R)-3′,4′-Dihydro-5′H-spiro[androst-4-ene-17,2′-furan]- 3,5′-dione. C₂₂H₃₀O₃ 342.47
    • USP Spironolactone Related Compound D RS (2′R)-7α-(Acetyldisulfanyl)-3′,4′-dihydro-5′Hspiro[ androst-4-ene-17,2′-furan]-3,5′-dione. C₂₄H₃₂O₄S₂ 448.64
    • USP Spironolactone Epimer Mixture RS
    • USP Spironolactone Related Compound C RS (2′RIt contains a mixture of approximately 39% of spironolactone and 56% of 7-epispironolactone: (2′R)-7β-(Acetylthio)-3′,4′-dihydro-5′H-spiro[androst-4- ene-17,2′-furan]-3,5′-dione. C24H32O4S 416.57)-3′,4′-Dihydro-5′H-spiro[androst-4-ene-17,2′-furan]- 3,5′-dione. C₂₂H₃₀O₃ 342.47
    • USP Spironolactone Related Compound I RS
    • S-[17α-(Ethoxymethyl)-17-hydroxy-3-oxoandrost-4-en- 7α-yl]ethanethioate. C₂₄H₃₆O₄S 420.61

    Storage & Handling

    Storage Information

    Preserve in well-closed containers.