SKU: E042  / 
    CAS Number: 158018-53-2

    4-epianhydrochlortetracycline hydrochloride

    $109.73 - $384.02
    4-epianhydrochlortetracycline (chlortetracycline impurity K) is a secondary degradation product formed by dehydration of epichlortetracycline at the C6 position to aromatise the B ring. 4-epianhydrochlortetracycline is an important standard for monitoring tetracycline stability.

    4-epianhydrochlortetracycline is soluble in ethanol, methanol, DMF or DMSO. Good water solubility.
    Molecular FormulaC22H22Cl2N2O7
    ReferencesQuantitative analysis of chlortetracycline and related substances by high-performance liquid chromatography. Kahn N.H. et al. J. Pharm. Biomed. Anal. 1989, 7,339.

    Analysis of purified samples of oxytetracycline, 4-epioxytetracycline, alpha-apooxytetracycline and beta-apooxytetracycline. Kahn N.H. et al. Janssen Chimica Acta 1992, 10, 16.

    Analysis of purified samples of the hydrochloride salt of chlortetracycline, 4-epichlortetracycline, anhydrochlortetracycline, 4-epianhydrochlortetracycline and isochlortetracycline. Hendrix C. et al. Janssen Chimica Acta, 1993, 11, 16.