CAS: 72-33-3
Molecular Formula: C21H26O2
Molecular weight:310.44
Mestranol is the 3-methyl ether of ethinylestradiol. It is a biologically abeyant prodrug of ethinylestradiol to which it is demethylated in the alarmist with a about-face ability of 70% (50 μg of mestranol is pharmacokinetically bioequivalent to 35 μg of ethinylestradiol).

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