Description

Andarine S-4 is a Selective androgen receptor modulator (SARM) that has been shown to have muscle sparing effects in rats. It binds to androgen receptors in the body and has been shown to improve muscle structure and metabolism in ovariectomized rats. Ostarine MK-2866 is a research compound that was initially created to help fight muscle wasting diseases, but has since been shown to selectively bind to androgen receptors and improve muscle vascularization in ovariectomized rats.

S4
CAS Number	19269-85-3
Molar Mass	128.3 g/mol-1
Chemical Formula	S4
IUPAC Name	Tetrathietane

Ostarine
CAS Number	1202044-20-9
Molar Mass	389.33g/mol-1
Chemical Formula	C19H10D4F3N3O3
IUPAC Name	3-(4-cyanophenoxy)-N-[4-cyano-3-(trifluoromethyl)phenyl]-2-hydroxy-2-methylpropanamide