Estriol Impurity 3

Name: Estriol Impurity 3
Brand: Vaqora Chemicals
SKU: VQ-030571

About Estriol Impurity 3

Estriol Impurity 3 is an impurity of Estriol carrying the CAS registry number 58001-91-5. The compound has the formula C18H24O4, corresponding to a molecular weight of 304.4 g/mol. It is also known as 15beta,16beta,17beta-Estetrol or Estetrol Impurity 6.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Estriol to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Estriol Impurity 3 in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Estriol

View every impurity, metabolite and intermediate we list for Estriol.

Estriol impurities

Specifications & identifiers

Chemical identifiers
Product name	Estriol Impurity 3
Catalogue No.	VQ-030571
CAS Number	58001-91-5
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 formula	C₁₈H₂₄O₄
Molecular weight	304.4 g/mol
Exact mass	304.1675
Grade	Reference Standard
HSN code	38229090
InChIKey	AJIPIJNNOJSSQC-VKXCEXFMSA-N
SMILES	C[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 CID	6453561

Physical properties
Physical form	Solid
LogP (XLogP3)	1.5
H-bond donors / acceptors	4 / 4
TPSA	80.9 Å²
Synonyms	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, 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

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Estriol Impurity 3?

The CAS Registry Number of Estriol Impurity 3 is 58001-91-5. It is also known 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.

What is the molecular formula and molecular weight of Estriol Impurity 3?

Estriol Impurity 3 has the molecular formula C18H24O4 and a molecular weight of 304.4 g/mol. Its 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.

What is Estriol Impurity 3 used for?

Estriol Impurity 3 is supplied as a characterised reference material related to Estriol. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Estriol Impurity 3 can I order?

We supply Estriol Impurity 3 in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Estriol Impurity 3?

Yes. Every lot of Estriol Impurity 3 is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Estriol Impurity 3 be shipped internationally?

Yes. We export Estriol Impurity 3 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.