Chlorodehydromethyltestosterone (CDMT) (brand name Oral Turinabol) is an androgenic-anabolic steroid. It is the 4-chloro-substituted derivative of metandienone (dehydromethyltestosterone) (Dianabol). CDMT was the first original product of Jenapharm, an East German pharmaceutical company. The patent registration took place in 1961. The idea of combining the structures of 4-chlorotestosterone (clostebol) and metandienone originated from the chemist Albert Stachowiak. At the time this represented a unique dissociation of anabolic and androgenic effects after oral administration. The product had been introduced for clinical use in 1965. CDMT was the key steroid administered to approximately 10,000 athletes from East Germany (GDR). The doping program was run by the East German Government from about 1968 until 1989 when the Berlin wall was destroyed. The doping program was known as STASI 14.25. The doping was done in secret and it was only in the 1990s when Franke and Berendonk looked closely at the original archived information and discovered the true scope of just how well-planned and successful the doping regime had been (in terms of medal success and world record performances).

CAS：2446-23-3
中文别名：
英文别名：Turinabol-oral;4-Chlorodehydromethyltestosterone;4-Chloro-1-dehydro-17-methyltestosterone;Oral-Turinabol;4-chloro-1-dehydromethyltestosterone;4-Chloro-methandienone;4-Chlorodianabol;
分子式：C22H50
分子量：314.632
精确质量：314.391
Psa：0.0
Logp：9.3202

UNII：ZPZ473F40K

外观与性状：灰白色固体
密度：1.2g/cm3
沸点：464.4ºC at 760mmHg
闪点：234.6ºC
折射率：1.579
蒸汽压：1.42E-10mmHg at 25°C