Pharm-Rx Erythromycin

Chemical Name: Erythromycin

CAS Number: 0114-07-08

Synonyms: 3''-O-demethylerythromycin, Abomacetin, E-Mycin, Emgel, Erycette, Eryderm, Erygel, Erymax, Erythrocin, Ilotycin, Staticin

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    Enhanced TDS

    Identification & Functionality

    Chemical Name
    Molecular formula
    C₃₇H₆₇NO₁₃
    Technologies
    Product Families
    Definition

    Erythromycin consists primarily of erythromycin A (C37H67NO13). The sum of the percentages of erythromycin A, erythromycin B, and erythromycin C is not less than 85.0% and not more than 100.5%, calculated on the anhydrous basis.

    Chemical Structure

     - 9

    Properties

    Typical Properties
    ValueUnitsTest Method / Conditions
    Molecular Weight733.94--

    Regulatory & 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 Erythromycin RS
    • USP Erythromycin B RS
    • 12-Deoxyerythromycin; (3R,4S,5S,6R,7R,9R,11R,12S,13R,14R)-6-{[(2S,3R,4S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy}-14-ethyl-7,12-dihydroxy-4 {[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione. C37H67NO12 717.94 (USP 1-Dec-2019)
    • USP Erythromycin C RS
    • 3′′-O-Demethylerythromycin; (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-{[(2R,4R,5S,6S)-4,5-Dihydroxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-6-{[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl]oxy}-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione. C36H65NO13 719.91 (USP 1-Dec-2019)
    • USP Erythromycin Related Compound N RS N-Demethylerythromycin A; (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-Ethyl-7,12,13-trihydroxy-4-{[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl]oxy}-6-{[(2S,3R,4S,6R)-3-hydroxy-6-methyl-4-(methylamino) tetrahydro-2H-pyran-2-yl]oxy}-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-

    Storage & Handling

    Storage Information

    Preserve in tight containers.