Dienedione, also known as estra-4,9-diene-3,17-dione is an anabolic steroid. It became a controlled substance in the US on January 4, 2010, and is classified as a Schedule III anabolic steroid under the United States Controlled Substances Act. Previous to this, it was sold as a bodybuilding supplement within the United States, and often mistakenly marketed as a prohormone for trenbolone, a veterinary steroid. Prior to its scheduling, it was part of a number of supplements that were seized during FDA enforcement of Bodybuilding.com for selling unapproved new drugs. The actual target steroid, dienolone has some structural similarity to trenbolone, but lacks the 11-carbon -ene bond.

CAS：5173-46-6
中文别名：甲基双烯双酮;4,9(10)-雌甾二烯-3,17-二酮;
英文别名：Estra-4,9-Diene-3,17-Dione;Estradienedione;19-Nor-4,9(10)-androstadienedione;4,9-Androstadiene-3,17-dione;Estradienedione, 19-Norandrosta-4,9(10)-diene-3,17-dione;Estra-4,9(10)-diene-3,17-dione;13-methyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthrene-3,17-dione;
分子式：C18H22O2
分子量：270.366
精确质量：270.162
Psa：34.14
Logp：3.7615

MDL号：MFCD03695567

外观与性状：白色或近乎于白色结晶粉末
密度：1.16 g/cm3
沸点：466.5ºC at 760 mmHg
熔点：131-134ºC
闪点：173.4ºC
折射率：1.575
储存条件：Refrigerator

海关编码：2937290090

用途
用作医药中间体