Allyltestosterone

Allyltestosterone
Clinical data
Other names	17α-Allyltestosterone; 17α-Allylandrost-4-en-17β-ol-3-one
Identifiers
	IUPAC name (8R,9S,10R,13S,14S,17R)-17-hydroxy-10,13-dimethyl-17-prop-2-enyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one;
CAS Number	98169-58-5;
PubChem CID	22808244;
ChemSpider	58190189;
UNII	54HM6O0YGK;
CompTox Dashboard (EPA)	DTXSID601047829 ;
Chemical and physical data
Formula	C22H32O2
Molar mass	328.496 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES C[C@]12CC[C@H]3[C@@H](CCC4=CC(=O)CC[C@]34C)[C@@H]1CC[C@]2(O)CC=C;
	InChI InChI=1S/C22H32O2/c1-4-10-22(24)13-9-19-17-6-5-15-14-16(23)7-11-20(15,2)18(17)8-12-21(19,22)3/h4,14,17-19,24H,1,5-13H2,2-3H3/t17-,18+,19+,20+,21+,22-/m1/s1; Key:DFRQHISHXQPKMU-VEYVBMQYSA-N;

Allyltestosterone, or 17α-allyltestosterone, also known as 17α-allylandrost-4-en-17β-ol-3-one, is a steroid derived from testosterone that was first synthesized in 1936 and was never marketed. Along with propyltestosterone (topterone), it has been patented as a topical antiandrogen and hair growth inhibitor. Allyltestosterone is the parent structure of two marketed 19-nortestosterone progestins, allylestrenol and altrenogest. These progestins are unique among testosterone derivatives in that they appear to be associated with few or no androgenic effects.