Ethisterone (INN, USAN, BAN) (brand names Pranone, Progestoral, Lutocylol, Proluton C, many others), also known as 17α-ethinyltestosterone, pregneninolone, and anhydrohydroxyprogesterone, is a steroidal progestin drug and was the first progestin, as well as the first orally active progestogen (it followed injected progesterone (Proluton), which was marketed in 1934), to be introduced.

CAS：434-03-7
中文别名：17β-羟基-4,17α-孕甾烯-20-炔基-3-酮;4,17α-孕甾烯-17β-醇-20-炔基-3-酮;17beta-羟基-17alpha-乙炔基-雄甾-4-烯-3-酮;17α-Ethynyltestosterone;17Α-乙炔睾酮;17-乙炔睾(甾)酮;脱水羟基孕酮;17α-乙炔睾酮;
英文别名：Produxan;17β-Hydroxy-4,17α-pregnen-20-yn-3-one;Prolutol;Prodoxan;Pranone;Gestoral;Pregn-4-en-20-yn-3-one, 17-hydroxy-, (17α)-;Pregnin;4,17α-Pregnen-17β-ol-20-yn-3-one;Prone;Ethinone;Ethisterone;Colutoid;
分子式：C21H28O2
分子量：312.446
精确质量：312.209
Psa：37.3
Logp：3.8826

UNII：P201BVY1MJ

外观与性状：灰白色粉末
密度：1.13g/cm3
沸点：446.4ºC at 760mmHg
熔点：266-273ºC
闪点：190.2ºC
稳定性：Stable at normal temperatures and pressures.
储存条件：Keep tightly closed. Store in a cool dry place.
蒸汽压：7.59E-10mmHg at 25°C

安全说明：S22-S24/25
危险类别码：R40; R48
海关编码：2942000000
危险品运输编码：UN 2811
危险类别：6.1
危险品标志：Xn

生产方法
由去氢表雄酮乙酸酯与乙炔加成、水解后,经氧化得17-乙炔睾酮。 孕激素用药。
用途
孕激素用药。