Testosterone propionate Chemical Name: 4-Androsten-17beta-ol-3-one propionate CAS NO.: 57-85-2 Molecular Formula: C22H32O3 Molecular weight: 344.49 Standard: USP28/BP2003 General Description: Odorless white or yellowish-white crystals or a white or creamy-white crystalline powder. Usage: Anabolic steroid. Androgen. Controlled substance.