Metandienone (INN) (trade names Averbol, Dianabol, Danabol, Metanabol, Naposim, Vetanabol), or methandienone (BAN), also known commonly as methandrostenolone, and known also as 17α-methyl-δ1-testosterone or 17α-methyl-1-dehydrotestosterone, is an orally active anabolic steroid originally developed in Germany and released in the United States in the early 1960s by Ciba Specialty Chemicals. Metandienone is a controlled substance in the United States and Western Europe and remains popular among bodybuilders. An injectable form is sold online from United States-based companies. Metandienone is readily available without a prescription in countries such as Mexico (under the trade name Reforvit-b), and is also manufactured in Asia and many Eastern European countries.

CAS：72-63-9
中文别名：甲基雄烯酮;17b-羟基-17a-甲基-1,4-雄甾二烯-3-酮;大力补;去氢甲睾酮(甲雄二烯酮);
英文别名：Metandienone;1-Dehydro-17α-methyltestosterone;Androsta-1,4-dien-3-one, 17-hydroxy-17-methyl-, (17β)-;
分子式：C20H28O2
分子量：300.435
精确质量：300.209
Psa：37.3
Logp：4.0453

UNII：COZ1R7EOCC

外观与性状：白色至灰白色结晶粉末
密度：1.12 g/cm3
沸点：436.5ºC at 760 mmHg
熔点：165-166°C
折射率：1.572
储存条件：2-8ºC

RTECS号：BV8000000
WGK Germany：3
海关编码：2942000000
危险品运输编码：3249
危险类别：6.1(b)
包装等级：III