Clemastine EP Impurity A

Name: Clemastine EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-021186

About Clemastine EP Impurity A

Clemastine EP Impurity A (CAS 108825-05-4) is a pharmacopeial impurity of Clemastine offered by Vaqora Chemicals. The compound has the formula C21H26ClNO2, corresponding to a molecular weight of 359.9 g/mol. Systematically, it is named (2R)-2-[2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-1-oxidopyrrolidin-1-ium. Alternative names: Clemastine Fumarate - Impurity A and Clemastine N-Oxide.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Clemastine impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Clemastine EP Impurity A is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Clemastine

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

Clemastine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Clemastine EP Impurity A
Catalogue No.	VQ-021186
CAS Number	108825-05-4
IUPAC name	(2R)-2-[2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-1-oxidopyrrolidin-1-ium
Molecular formula	C₂₁H₂₆ClNO₂
Molecular weight	359.9 g/mol
Exact mass	359.1652
Grade	Reference Standard
HSN code	38229090
InChIKey	PRZFEDGPQDFPLM-OJOWTSHBSA-N
SMILES	C[C@@](C1=CC=CC=C1)(C2=CC=C(C=C2)Cl)OCC[C@H]3CCC[N+]3(C)[O-]
PubChem CID	131667511

Physical properties
Physical form	Solid
LogP (XLogP3)	4.5
H-bond donors / acceptors	0 / 2
TPSA	27.3 Å²
Synonyms	Clemastine Fumarate Impurity A (Mixture of Diastereomers), Clemastine Fumarate - Impurity A, Clemastine N-Oxide, (2R)-2-(2-((R)-1-(4-Chlorophenyl)-1-phenylethoxy)ethyl)-1-methylpyrrolidine 1-oxide, [R-(R,R)]- 2-[2-[1-(4-Chlorophenyl)-1-phenylethoxy]ethyl]-1-methylpyrrolidine 1-Oxide, (1RS,2R)-2-[2-[(R)-1-(4-chlorophenyl)-1-phenylethoxy]-ethyl]-1-methylpyrrolidine 1-oxide, (2R)-2-[2-[(1R)-1-(4-Chlorophenyl)-1-phenylethoxy]ethyl]-1-methylpyrrolidine 1-oxide, Pyrrolidine, 2-[2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-, 1-oxide, (2R)-

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 Clemastine EP Impurity A?

The CAS Registry Number of Clemastine EP Impurity A is 108825-05-4. It is also known as Clemastine Fumarate Impurity A (Mixture of Diastereomers), Clemastine Fumarate - Impurity A, Clemastine N-Oxide.

What is the molecular formula and molecular weight of Clemastine EP Impurity A?

Clemastine EP Impurity A has the molecular formula C21H26ClNO2 and a molecular weight of 359.9 g/mol. Its IUPAC name is (2R)-2-[2-[(1R)-1-(4-chlorophenyl)-1-phenylethoxy]ethyl]-1-methyl-1-oxidopyrrolidin-1-ium.

What is Clemastine EP Impurity A used for?

Clemastine EP Impurity A is supplied as a characterised reference material related to Clemastine. 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 Clemastine EP Impurity A can I order?

We supply Clemastine EP Impurity A 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 Clemastine EP Impurity A?

Yes. Every lot of Clemastine EP Impurity A 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 Clemastine EP Impurity A be shipped internationally?

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