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CAS 51-98-9

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Norethisterone acetate

Description:
Norethisterone acetate, with the CAS number 51-98-9, is a synthetic progestin, a type of hormone that mimics the effects of progesterone in the body. It is commonly used in hormonal contraceptives and hormone replacement therapy. This compound is characterized by its white to off-white crystalline powder form, which is relatively stable under normal conditions. Norethisterone acetate is lipophilic, allowing it to be absorbed well in the body when administered orally. Its chemical structure includes a steroid backbone, which is essential for its biological activity, and it exhibits anti-estrogenic properties, making it effective in regulating menstrual cycles and managing various gynecological conditions. The substance is typically administered in low doses due to its potency and can have side effects, including changes in mood, weight gain, and potential cardiovascular risks. Overall, norethisterone acetate plays a significant role in reproductive health and is an important compound in the field of endocrinology and gynecology.
Formula:C22H28O3
InChI:InChI=1S/C22H28O3/c1-4-22(25-14(2)23)12-10-20-19-7-5-15-13-16(24)6-8-17(15)18(19)9-11-21(20,22)3/h1,13,17-20H,5-12H2,2-3H3/t17-,18+,19+,20-,21-,22-/m0/s1
InChI key:InChIKey=IMONTRJLAWHYGT-ZCPXKWAGSA-N
SMILES:C[C@@]12[C@](OC(C)=O)(C#C)CC[C@]1([C@]3([C@](CC2)([C@@]4(C(CC3)=CC(=O)CC4)[H])[H])[H])[H]
Synonyms:
  • (17Alpha)-17-Ethynyl-3-Oxoestr-4-En-17-Yl Acetate
  • (17Beta)-17-Ethynyl-3-Oxoestr-4-En-17-Yl Acetate
  • (17α)-17-(Acetyloxy)-19-norpregn-4-en-20-yn-3-one
  • (8Xi,9Xi,14Xi,17Beta)-17-Ethynyl-3-Oxoestr-4-En-17-Yl Acetate
  • 17-Acetoxy-19-nor-17α-pregn-4-en-20-yn-3-one
  • 17-Ethynyl-3-Oxoestr-4-En-17-Yl Acetate
  • 17-Hydroxy-19-nor-17α-pregn-4-en-20-yn-3-one acetate
  • 17α-Ethinyl-19-nortestosterone 17β-acetate
  • 17α-Ethinyl-19-nortestosterone acetate
  • 17α-Ethinyl-4-estrene-17β-ol-acetate-3-one
  • See more synonyms
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