Clostebol acetate

Clostebol acetate (BAN) (brand names Macrobin, Steranabol, Alfa-Trofodermin, Megagrisevit), also known as 4-chlorotestosterone 17β-acetate (4-CLTA) or as 4-chloroandrost-4-en-17β-ol-3-one 17β-acetate, is a synthetic, injected anabolic-androgenic steroid (AAS) and a derivative of testosterone that is marketed in Germany and Italy.^[1][2][3] It is an androgen ester – specifically, the C17β acetate ester of clostebol (4-chlorotestosterone) – and acts as a prodrug of clostebol in the body.^{[1][2][additional citation(s) needed]} Clostebol acetate is administered via intramuscular injection.^[3][4]

Clostebol acetate

Clinical data
Trade names	Macrobin, Steranabol, Alfa-Trofodermin, Megagrisevit
Other names	4-Chlorotestosterone acetate; 4-CLTA; 4-Chloroandrost-4-en-17β-ol-3-one 17β-acetate; NSC-72159
Routes of administration	Intramuscular injection
Identifiers
IUPAC name [(8R,9S,10R,13S,14S,17S)-4-Chloro-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate
CAS Number	855-19-6
PubChem CID	13327
DrugBank	DB15984
ChemSpider	12762
UNII	780ZZX4P14
KEGG	C18374
ChEBI	CHEBI:81712
ChEMBL	ChEMBL519327
CompTox Dashboard (EPA)	DTXSID00234702
ECHA InfoCard	100.011.565
Chemical and physical data
Formula	C21H29ClO3
Molar mass	364.91 g·mol−1
3D model (JSmol)	Interactive image
SMILES CC(=O)O[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=C(C(=O)CC[C@]34C)Cl)C
InChI InChI=1S/C21H29ClO3/c1-12(23)25-18-7-6-14-13-4-5-16-19(22)17(24)9-11-20(16,2)15(13)8-10-21(14,18)3/h13-15,18H,4-11H2,1-3H3/t13-,14-,15-,18-,20+,21-/m0/s1 Key:XYGMEFJSKQEBTO-KUJXMBTLSA-N