- Ethynylestradiol-3-cyclopentyl ether
- 19-Nor-17a-pregna-1,3,5(10)-trien-20-yn-17-ol, 3-(cyclopentyloxy)-
- 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-cyclopentyl ether
- 17a-Ethynylestradiol 3-cyclopentyl ether17a-ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-cyclopentyl ether
Used to treat symptoms of menopause, such as hot flashes. Also used to treat breast and prostate cancer
Registry Numbers and Inventories.
45 61 20/21/22
53 22 36/37/39 45
Drug; Reproductive Effector; Human Data; Hormone
Melting point, °C
107 - 108
Vapor pressure, mmHg
6E-11 (25 C)
Solubility in water
Partition coefficient, pKow
Heat of vaporization
Hazards and Protection.
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing.
Sweep up, place in a bag and hold for waste disposal. Ventilate area and wash spill site after material pickup is complete.
Stable at normal temperatures and pressures.
Strong oxidizing agents.
Carbon monoxide, Carbon dioxide.
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Emits toxic fumes under fire conditions.
Toxic. May cause cancer. Harmful by inhalation, in contact with skin and if swallowed. May cause harm to the unborn child. Reproductive hazard. Target organ(s): Liver. Blood.
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
If inhaled, remove to fresh air. If breathing becomes difficult, call a physician.
In case of skin contact, flush with copious amounts of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician.
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.