Androstanolone benzoate (brand names Ermalone-Amp, Hermalone, Sarcosan), also known as stanolone benzoate or dihydrotestosterone benzoate (DHTB), as well as 5ñ-androstan-17ò-ol-3-one 17ò-benzoate, is a synthetic androgen and anabolic steroid and a dihydrotestosterone ester. It is used as an injectable and acts as a prodrug of androstanolone (stanolone, dihydrotestosterone, DHT).