Quinestrol (INN, USAN, BAN) (brand names Agalacto-Quilea, Basaquines, Eston, Estrovis, Estrovister, Plestrovis, Qui-lea), also known as ethinyl estradiol 3-cyclopentyl ether, is a synthetic, steroidal estrogen used in hormone replacement therapy and occasionally to treat breast cancer and prostate cancer.

CAS：152-43-2
中文别名：炔雌醚;
英文别名：Quinestrol;17α-Ethynylestradiol 3-Cyclopentyl Ether;(8R,9S,13S,14S,17R)-3-cyclopentyloxy-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol;
分子式：C25H32O2
分子量：364.52
精确质量：364.24
Psa：29.46
Logp：5.2284

RTECS号：RC8948000
PubChem号：24894659
EINECS号：205-803-1
MDL号：MFCD00079189

外观与性状：晶体
密度：1.15 g/cm3
沸点：502.5ºC at 760 mmHg
熔点：107 - 108ºC
闪点：218.8ºC
折射率：1.596
稳定性：Stable at normal temperatures and pressures.
蒸汽压：6.43E-11mmHg at 25°C

RTECS号：RC8948000
安全说明：S53-S22-S36/37/39-S45
危险类别码：R46; R61; R20/21/22
WGK Germany：3
危险品标志：T

用途
用作雌激素类药。