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ChemicalBook >  Product Catalog >  API >  Hormones and the Endocrine System >  Estrogen and progestin drugs >  17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether

17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether

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17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether Basic information
17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether Chemical Properties
  • Melting point:153-155 °C(lit.)
  • alpha +2~+8°(D/20℃)(c=1, 1,4-dioxane)
  • Boiling point:390.58°C (rough estimate)
  • Density 1.0865 (rough estimate)
  • refractive index 1.4900 (estimate)
  • storage temp. -20°C Freezer
  • form neat
  • pka13.10±0.40(Predicted)
  • optical activity[α]15/D +3°, c = 2 in dioxane
  • Merck 5917
  • BRN 2625905
  • CAS DataBase Reference72-33-3(CAS DataBase Reference)
  • NIST Chemistry ReferenceMestranol(72-33-3)
  • EPA Substance Registry SystemMestranol (72-33-3)
Safety Information
MSDS
17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether Usage And Synthesis
  • Chemical PropertiesCrystalline Solid
  • Usesantiemetic
  • UsesMestranol is an orally active estrogenic steroid. It was the estrogen used in many of the first oral contraceptives
  • DefinitionChEBI: A terminal acetylenic compound that is (17alpha)-17-ethynylestra-1(10),2,4-triene substituted by a methoxy group at position 3 and a hydroxy group at position 17.
  • Safety ProfileConfirmed carcinogen with experimental. neoplastigenic, tumorigenic, and teratogenic data. Moderately toxic by subcutaneous route. Human reproductive effects by ingestion: changes in ovaries and fallopian tubes, ferthty effects. Experimental reproductive effects. Mutation data reported. An FDA proprietary drug. A steroid used in oral contraceptives. When heated to decomposition it emits acrid smoke and irritating fumes.
17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether(72-33-3)Related Product Information
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