Stanozolol(winstrol) Chemical Name: 5alpha-androstan-17alpha methyl-17beta ol-[3,2-c] pyrazole CAS NO.: 10148-03-8 Molecular Formula: C21H32N2O Molecular weight: 328.49 Standard: USP28/BP2003 Chemical Properties: White Solid Usage: Anabolic steroid. Androgen. Controlled substance.