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API Impurities

Estriol Impurity 3

Reference StandardAvailable on request

Order Estriol Impurity 3 (CAS 58001-91-5) online at Zemixal: C18H24O4, COA and SDS with every lot, worldwide shipping. Packs from 10 mg.

Pack sizes
Estriol Impurity 3 chemical structure
CAS number58001-91-5
FormulaC18H24O4
Molar mass304.4 g/mol
Physical formSolid
HS code38229090
InChIKeyAJIPIJNNOJSSQC-VKXCEXFMSA-N
IUPAC name(8R,9S,13S,14S,15S,16S,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol

About Estriol Impurity 3

Estriol Impurity 3 belongs to the Estriol reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 58001-91-5, formula C18H24O4 and molar mass 304.4 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. Each lot travels with a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Estriol

See every impurity, metabolite and related compound we list for this API.

Estriol standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of Estriol Impurity 3
Product nameEstriol Impurity 3
Catalogue numberZX-029344
CAS number58001-91-5
IUPAC name(8R,9S,13S,14S,15S,16S,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol
Molecular formulaC18H24O4
Molar mass304.4 g/mol
Exact mass304.1675
GradeReference Standard
Physical formSolid
XLogP31.5
H-bond donors / acceptors4 / 4
Topological polar surface area80.9 Ų
HS code38229090
InChIKeyAJIPIJNNOJSSQC-VKXCEXFMSA-N
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1[C@@H]([C@@H]([C@@H]2O)O)O)CCC4=C3C=CC(=C4)O
PubChem CID6453561
Synonyms1,3,5(10)-Estratriene-3,15beta,16beta,17beta-tetrol, 15beta,16beta,17beta-Estetrol, (15beta,16beta,17beta)-estra-1,3,5(10)-triene-3,15,16,17-tetrol, Estetrol Impurity 6, Estra-1,3,5(10)-triene-3,15,16,17-tetrol, (15beta,16beta,17beta)-, Estriol Impurity N1, Estra-1(10),2,4-triene-3,15,16,17-tetrol, Estra-1(10),2,4-triene-3,15beta,16beta,17beta-tetrol

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Estriol Impurity 3
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Estriol Impurity 3

Which CAS number identifies Estriol Impurity 3?
Estriol Impurity 3 is registered under CAS 58001-91-5. You may also see it listed as 1,3,5(10)-Estratriene-3,15beta,16beta,17beta-tetrol, 15beta,16beta,17beta-Estetrol, (15beta,16beta,17beta)-estra-1,3,5(10)-triene-3,15,16,17-tetrol. Our catalogue number for this item is ZX-029344.
What are the formula and molar mass of Estriol Impurity 3?
For Estriol Impurity 3, its formula is C18H24O4 and its molar mass is 304.4 g/mol. The systematic (IUPAC) name is (8R,9S,13S,14S,15S,16S,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,15,16,17-tetrol. InChIKey AJIPIJNNOJSSQC-VKXCEXFMSA-N lets you match it in any structure database.
How is Estriol Impurity 3 used in pharmaceutical QC?
Estriol Impurity 3 is a characterised reference material linked to Estriol. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Estriol Impurity 3?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Estriol Impurity 3?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Estriol Impurity 3 to my country?
Yes. Estriol Impurity 3 ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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