炔雌醇
中文名稱：    炔雌醇
中文別名：     乙炔雌二醇
英文名稱：    Ethinylestradiol
EINECS號：    200-342-2
分子式：    C20H24O2
分子量：    296.4034
        57-63-6
密度：    1.21g/cm3
熔點：    182-183℃
沸點：    457.2°C at 760 mmHg
閃點：    211.2°C
蒸汽壓：    3.74E-09mmHg at 25°C
物化性質：
熔點：142 - 146
水溶性：<0.1 g/100 mL at 21 C
產品用途：
屬雌激素類藥
為3-羥基-19-去甲-17α-孕甾-1,3,5(10)-三烯-20-炔－17－醇。
按干燥品計算，含C20H24O2應為97.0%～103.0%。
本品為白色或類白色的結晶性粉末；無臭
在水中不溶。本品的熔點（附錄ⅥC）為180～186℃。

Product Name: Ethynyl estradiol 
Synonyms: NOVESTROL;NEO-ESTRONE;ETHYNYLESTRADIOL;ETHINYL ESTRADIOL;LYNORAL;17ALPHA-ETHYNYL-DELTA1,3,5(10)-ESTRA-TRIENE-3,17BETA-DIOL;17ALPHA-ETHYNYLESTRADIOL;17ALPHA-ETHINYLESTRADIOL 
CAS: 57-63-6 
MF: C20H24O2 
MW: 296.4 
EINECS: 200-342-2 
Ethynyl estradiol Chemical Properties 
Melting point  182-183 °C(lit.)
 
refractive index  -30 ° (C=0.4, Pyridine) 
storage temp.  -20°C Freezer 
solubility  ethanol: 50 mg/mL, clear, slightly yellow
 
Ethynyl estradiol Usage And Synthesis 
Chemical Properties Off-White to Light-Yellow Crystalline Powder 
Usage A metabolite of 17a-Ethynylestradiol 
Usage A synthetic steroid with high oral estrogenic potency 
Usage estrogen, plus progestogen as oral contraceptive 
General Description Fine white to creamy white powder. A synthetic steroid. Used in combination with progestogen as an oral contraceptive. 
Air & Water Reactions Air and light sensitive . Insoluble in water. 
Reactivity Profile Ethynyl estradiol may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to generate gaseous hydrogen.