18-Methyltestosterone

18-Methyltestosterone (18-MT) is an androgen/anabolic steroid (AAS) which was never marketed.^[1][2][3] Along with 19-nortestosterone (nandrolone) and 17α-ethynyltestosterone (ethisterone), it is a parent structure of a number of progestogens and AAS. These include the progestogens levonorgestrel (17α-ethynyl-18-methyl-19-nortestosterone) and its derivatives (e.g., desogestrel, gestodene, norgestimate, gestrinone) as well as AAS such as norboletone (17α-ethyl-18-methyl-19-nortestosterone) and tetrahydrogestrinone (THG; δ^9,11-17α-ethyl-18-methyl-19-nortestosterone).

Other names18-MT; 18-Methylandrost-4-en-17β-ol-3-one; 13β-Ethyl-17β-hydroxy-18-norandrost-4-en-3-one

Drug classAndrogen; Anabolic steroid

CAS Number

• 7381-64-8 ^Y

PubChem CID

• 54393203

Quick facts Clinical data, Other names ...

18-Methyltestosterone

Clinical data
Other names	18-MT; 18-Methylandrost-4-en-17β-ol-3-one; 13β-Ethyl-17β-hydroxy-18-norandrost-4-en-3-one
Drug class	Androgen; Anabolic steroid
Identifiers
IUPAC name (8R,9S,10R,13S,14S,17S)-13-ethyl-17-hydroxy-10-methyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
CAS Number	7381-64-8 Y
PubChem CID	54393203
ChemSpider	114811238
UNII	8MFH3FAP6D
CompTox Dashboard (EPA)	DTXSID301337407
Chemical and physical data
Formula	C20H30O2
Molar mass	302.458 g·mol−1
3D model (JSmol)	Interactive image
SMILES CC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@@H]2O)CCC4=CC(=O)CC[C@]34C
InChI InChI=1S/C20H30O2/c1-3-20-11-9-16-15(17(20)6-7-18(20)22)5-4-13-12-14(21)8-10-19(13,16)2/h12,15-18,22H,3-11H2,1-2H3/t15-,16+,17+,18+,19+,20+/m1/s1 Key:VIDBKWVIQCRYHG-HLXURNFRSA-N

Close