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Estriol

Inquiry
  Post Date: Dec 03,2014
  Expiry Date: Jun 01,2015
  Detailed Description: Cas No. :50-27-1 Quantity: 1000
Specs:EP USP BP
Price:1 USD Kilograms
Payment Method: TT

Estriol

Pure pwders,APIS,raw material,Not formulators,Not sell in patent valid country.

Estriol
  • CAS No: 50-27-1
  • Files: N/A
  • Lead time: 3 days
  • Package: 1kg/5kg bag or ja,Preserve in tight containers.
  • Price: Negotiated based on quantity
  • Purity/Assay: NLT: 99.5% by HPLC,Standard: 97% to 102%,on dried basis.
  • Shipping: Air Mail
  • Standard: EP/USP
  • Appearance: White crystalliine powder,odorless

Assay Standard:Estriol contains not less than 97.0 percent and not more than 102.0 percent of C18H24O3, calculated on the dried basis.

Estriol

Estriol

Packaging and storage: Estriol should be Preserved in tight containers.
Estriol Reference standards Available

Completeness of solution:Dissolve Estriol 500 mg in 10 mL of pyridine: the solution is clear and free from undissolved solid.
Estriol Identification:
A: Infrared Absorption 197K.
B: Ultraviolet Absorption 197U
Solution: 100 µg per mL.
Medium: alcohol.
Specific rotation 781S: between +54 and +62.
Test solution: 4 mg per mL, in dioxane.
Loss on drying 731— Dry it at 105 for 3 hours: it loses not more than 0.5% of its weight.
Residue on ignition 281: not more than 0.1%.

  CAS Registry Number:

50-27-1
  Synonyms: ;oestriol;1,3,5(10)-Estratriene-3,16a,17b-triol; Estra-1,3,5(10)-triene-3,16alpha,17beta-triol;(16alpha,17beta)-estra-1,3,5(10)-triene-3,16,17-triol;(8R,13S,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,16,17-triol;
  Molecular Formula: C18H24O3
  Molecular Weight: 288.3814
  Molecular Structure: 50-27-1 Estriol

  Company: Jinan Putu Biotec Co.,Ltd     [ China ]        
  Contact: Lee Tao
  Tel: 86-531-80992215
  Fax: 86-531-80992215
  Email: putubio@outlook.com
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