Oral Turinabol, officially known as 4-chlorodehydromethyltestosterone is basically a structurally altered form of Dianabol (Methandrostenolone), which itself is a derivative of testosterone. The structural makeup of Oral Turinabol is very simple. The compound is simply the testosterone hormone with an added double bond at carbon 1 and 2, which alters the anabolic to androgenic ratio in favor of anabolic. It also carries an added Chloro group at carbon 4, which inhibits the hormone from aromatizing and further reduces its androgenic nature. The final change is an added methyl group at the 17^th carbon position, which protects the hormone through oral administration. This final change officially classifies Oral Turinabol as a C17-alpha alkylated (C17-aa) anabolic androgenic steroid.