Estriol EP Impurity C

Name: Estriol EP Impurity C
Brand: Vaqora Chemicals
SKU: VQ-022569

About Estriol EP Impurity C

Vaqora Chemicals supplies Estriol EP Impurity C, a pharmacopeial impurity of Estriol registered under CAS number 1474-53-9. The compound has the formula C19H26O3, corresponding to a molecular weight of 302.4 g/mol. It is also known as Estriol Methyl Ether or Estriol - Impurity C.

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. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

This Estriol impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Estriol EP Impurity C in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Estriol

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

Estriol impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Estriol EP Impurity C
Catalogue No.	VQ-022569
CAS Number	1474-53-9
IUPAC name	(8R,9S,13S,14S,16R,17R)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-16,17-diol
Molecular formula	C₁₉H₂₆O₃
Molecular weight	302.4 g/mol
Exact mass	302.1882
Grade	Reference Standard
HSN code	38229090
InChIKey	UHQGCIIQUZBJAE-QKDSSNGWSA-N
SMILES	C[C@]12CC[C@H]3[C@H]([C@@H]1C[C@H]([C@@H]2O)O)CCC4=C3C=CC(=C4)OC
PubChem CID	5284653

Physical properties
Physical form	Solid
LogP (XLogP3)	2.8
H-bond donors / acceptors	2 / 3
TPSA	49.7 Å²
Synonyms	Estriol Methyl Ether, Estriol - Impurity C, Estriol 3-methyl ether, Estriol-3-methyl ether, 3-Methoxyestriol, 3-methyl-estriol, 3-Methoxyestra-1,3,5(10)-triene-16alpha,17beta-diol (Estriol 3-Methyl Ether), 3-Methoxyestra-1,3,5(10)-triene-16alpha,17beta-diol, (16alpha,17beta)-3-methoxyestra-1,3,5(10)-triene-16,17-diol, ESTRA-1,3,5(10)-TRIENE-16-alpha,17-beta-DIOL, 3-METHOXY-

Safety & hazard information (GHS)

Health hazard

Signal word: Warning

Hazard statements

H351Suspected of causing cancer

Precautionary statements: P203, P280, P318, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

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 EP Impurity C?

The CAS Registry Number of Estriol EP Impurity C is 1474-53-9. It is also known as Estriol Methyl Ether, Estriol - Impurity C, Estriol 3-methyl ether.

What is the molecular formula and molecular weight of Estriol EP Impurity C?

Estriol EP Impurity C has the molecular formula C19H26O3 and a molecular weight of 302.4 g/mol. Its IUPAC name is (8R,9S,13S,14S,16R,17R)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-16,17-diol.

What is Estriol EP Impurity C used for?

Estriol EP Impurity C 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 EP Impurity C can I order?

We supply Estriol EP Impurity C 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 EP Impurity C?

Yes. Every lot of Estriol EP Impurity C 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 EP Impurity C be shipped internationally?

Yes. Estriol EP Impurity C is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.