2018年1月24日星期三

estriol ada@tuskwei.com Whatsapp;+008617197824028 Sky;17197824028

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Product nameEstriol
CAS NO50-27-1
Purity99%
MFC18H24O3
MW288.38
EINECS200-022-2
AppearanceWhite Powder
UsageAnti estrogen steroids , primary estrogen in urine . A metabolite of Estradiol . used to treat leukopenia , also have a certain effect for prostatic hypertrophy , prostate cancer .
SynonymsTRIDESTRIN;(16-alpha,17-beta)-estra-1,3,5(10)-triene-3,16,17-triol;(16alpha,17beta)-Estra-1,3,5(10)-triene-3,16,17-triol;(16-alpha,17-beta)-oestra-1,3,5(10)-triene-3,16,17-triol;(16alpha,17beta)-Oestra-1,3,5(10)-triene-3,16,17-triol;1,3,5-estratriene-3-beta,16-alpha,17-beta-triol;1,3,5-Estratriene-3beta,16-alpha,17-beta-triol;1,3,5-oestratriene-3-beta,16-alpha,17-beta-triol
CategoriesSteroids;Hormone;Biochemistry;Hydroxysteroids;Intermediates&Fine-Chemicals;Metabolites&Impurities;Pharmaceuticals;Steroid-and-Hormone;API;THEELOL;Hormone Drugs;Inhibitors


COA
Items of analysis
Specification

Results
AppearanceWhite to practically white, odorless, crystalline powder.white crystalline powder, odorless
IdentificationA:IR B:UVConforms
Melting pointAbout280ºC281.5ºC
SolubilityInsoluble in water; sparingly soluble in alcohol; soluble in acetone, in chloroform, in dioxane, in ether, and in vegetable oilsConforms
Completeness of solutionThe solution is clear and free from undissolved solid.Conforms
Loss on drying≤0.5%0.26%
Specific optical rotation+54°~ +62°+57.07°
Total impurities≤2.0%Conforms
Residue on ignition≤0.1%0.06%
AssayAssay98.63%
ConclusionQualified

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