Penmesterol

Penmesterol (INNTooltip International Nonproprietary Name) (brand names Pandrocine, Testopan; former developmental code name RP-12222), or penmestrol, also known as 17α-methyltestosterone 3-cyclopentyl enol ether,^[1] is a synthetic, orally active anabolic-androgenic steroid (AAS) that was developed in the early 1960s.^[2][3][4][5] It is the 3-cyclopentyl enol ether of methyltestosterone.^[6][7]

Trade namesPandocrine; Testopan

Other namesRP-12222; 17α-Methyltestosterone 3-cyclopentyl enol ether

Routes of
administrationBy mouth

CAS Number

• 67-81-2

Quick facts Clinical data, Trade names ...

Penmesterol

Clinical data
Trade names	Pandocrine; Testopan
Other names	RP-12222; 17α-Methyltestosterone 3-cyclopentyl enol ether
Routes of administration	By mouth
Identifiers
IUPAC name (8R,9S,10R,13S,14S,17S)-3-Cyclopentyloxy-10,13,17-trimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-17-ol
CAS Number	67-81-2
PubChem CID	20054971
ChemSpider	16735903
UNII	D5F29U03HM
ChEMBL	ChEMBL2104849
CompTox Dashboard (EPA)	DTXSID301018944
ECHA InfoCard	100.000.609
Chemical and physical data
Formula	C25H38O2
Molar mass	370.577 g·mol−1
3D model (JSmol)	Interactive image
SMILES C[C@]12CCC(=CC1=CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@]4(C)O)C)OC5CCCC5
InChI InChI=1S/C25H38O2/c1-23-13-10-19(27-18-6-4-5-7-18)16-17(23)8-9-20-21(23)11-14-24(2)22(20)12-15-25(24,3)26/h8,16,18,20-22,26H,4-7,9-15H2,1-3H3/t20-,21+,22+,23+,24+,25+/m1/s1 Key:ZUBDXGHKAAMAAA-RFXJPFPRSA-N

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