Trimethyltrienolone

Trimethyltrienolone
Clinical data
Other names	TMT; R-2956; RU-2956; 2α,2β,17α-Trimethyltrienolone; 2α,2β,17α-Trimethyltrenbolone; 2α,2β-Dimethylmetribolone; δ9,11-2α,2β,17α-trimethyl-19-nortestosterone; 2α,2β,17α-Trimethylestra-4,9,11-trien-17β-ol-3-one; 17β-Hydroxy-2α,2β,17α-trimethylestra-4,9,11-trien-3-one
Drug class	Steroidal antiandrogen
ATC code	None;
Identifiers
	IUPAC name (8R,13S,14S,17R)-17-hydroxy-2,2,13,17-tetramethyl-6,7,8,14,15,16-hexahydro-1H-cyclopenta[a]phenanthren-3-one;
CAS Number	23983-19-9;
PubChem CID	170652;
ChemSpider	149197;
CompTox Dashboard (EPA)	DTXSID80962490 ;
Chemical and physical data
Formula	C21H28O2
Molar mass	312.453 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES CC1(CC2=C3C=CC4(C(C3CCC2=CC1=O)CCC4(C)O)C)C;
	InChI InChI=1S/C21H28O2/c1-19(2)12-16-13(11-18(19)22)5-6-15-14(16)7-9-20(3)17(15)8-10-21(20,4)23/h7,9,11,15,17,23H,5-6,8,10,12H2,1-4H3/t15-,17-,20-,21+/m0/s1; Key:VFKZTCQVCJGPGF-STRKUORWSA-N;

Trimethyltrienolone (TMT), also known by its developmental code name R-2956 or RU-2956, is an antiandrogen medication which was never introduced for medical use but has been used in scientific research.