My watch list  


Systematic (IUPAC) name
CAS number 72-33-3
ATC code  ?
PubChem 6291
Chemical data
Formula C21H26O2 
Mol. mass 310.43 g/mol
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.


Legal status
Routes  ?

Mestranol is the 3-methyl ether of ethinylestradiol. It was the estrogen used in many of the first oral contraceptives.

It is a biologically inactive prodrug of ethinylestradiol to which it is demethylated in the liver with a conversion efficiency of 70% (50 µg of mestranol is pharmacokinetically bioequivalent to 35 µg of ethinylestradiol).[1]


  1. ^ Faigle, Johann W.; Schenkel, Lotte (1998). "Pharmacokinetics of estrogens and progestogens", in in Fraser, Ian S. (ed.): Estrogens and Progestogens in Clinical Practice. London: Churchill Livingstone, pp. 273-294. ISBN 0-443-04706-5. 

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Mestranol". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE