Nilestriol CAS 39791-20-3
High Purity Raw Steroid PowdersNilestriol / Nylestriol CAS 39791-20-3
Product Name: Nilestriol
Synonyms: NILESTRIOL;nylestriol;3-(cyclopentyloxy)-17alpha-ethinyl-1,3,5(10)-estratrien-16alpha,17beta-diol;17alpha-ethynylestra-1,3,5(10)-triene-3,16alpha,17beta-triol 3-cyclopentyl ether;17α-Ethynyl-3-cyclopentyloxyestra-1,3,5(10)-triene-16α,17β-diol;(8R,9S,13S,14S,16R,17R)-3-(cyclopentoxy)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-16,17-diol;(8R,9S,13S,14S,16R,17R)-3-cyclopentyloxy-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-16,17-diol
Density: 1.21g / cm3
Boiling point: 521.7 ° C at 760 mmHg
Flash Point: 269.3 ° C
Vapor Pressure: 1.03E-11mmHg at 25 ° C
Appearance: white crystalline powder.
Purpose: estrogen drugs for the treatment of estrogen deficiency due to menopause caused.
Nilestriol (brand name Wei Ni An; developmental code name LY-49825), also known as nylestriol , is a synthetic, steroidal estrogen that was patented in 1971 and is marketed in China. It is the 3-cyclopentyl ether of ethinyl estriol, and is also known as ethinyl estriol cyclopentyl ether (EE3CPE). Nilestriol is a prodrug of ethinyl estriol, and is a more potent estrogen in comparison. It is described as a slowly-metabolized, long-acting estrogen and derivative of estriol. Nilestriol was assessed in combination with levonorgestrel for the potential treatment of postmenopausal osteoporosis, but this formulation ultimately was not marketed.
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