Trendione

Trendione
Clinical data
Other names	RU-2065; Trenavar; Triendione; Estra-4,9,11-triene-3,17-dione
Drug class	Androgen; Anabolic steroid; Progestogen
Identifiers
	IUPAC name (8S,13S,14S)-13-Methyl-1,2,6,7,8,14,15,16-octahydrocyclopenta[a]phenanthrene-3,17-dione;
CAS Number	4642-95-9;
PubChem CID	160762;
ChemSpider	141254;
UNII	7M9J4CV848;
CompTox Dashboard (EPA)	DTXSID80873491 ;
Chemical and physical data
Formula	C18H20O2
Molar mass	268.356 g·mol−1
3D model (JSmol)	Interactive image;
	SMILES C[C@]12C=CC3=C4CCC(=O)C=C4CC[C@H]3[C@@H]1CCC2=O;
	InChI InChI=1S/C18H20O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h8-10,15-16H,2-7H2,1H3/t15-,16+,18+/m1/s1; Key:KBSXJBBFQODDTQ-RYRKJORJSA-N;

Trendione (developmental code name RU-2065; nickname Trenavar), also known as estra-4,9,11-triene-3,17-dione, is an androgen prohormone as well as metabolite of the anabolic steroid trenbolone.^[1]^[2]^[3]^[4]^[5] Trendione is to trenbolone as androstenedione is to testosterone.^[6] The compound is inactive itself, showing more than 100-fold lower affinity for the androgen and progesterone receptors than trenbolone.^[7]^[8] It is a designer steroid and has been sold on the internet as a "nutritional supplement".^[1] Trendione is listed in the United States Designer Anabolic Steroid Control Act of 2014.^[1]

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See also