Clemastine Fumarate Impurity B

Name: Clemastine Fumarate Impurity B
Brand: Vaqora Chemicals
SKU: VQ-036359

About Clemastine Fumarate Impurity B

Vaqora Chemicals supplies Clemastine Fumarate Impurity B, an impurity of Clemastine registered under CAS number 61771-18-4. Formula C21H26ClNO, molecular weight 343.9 g/mol. Its systematic (IUPAC) name is 4-[1-(4-chlorophenyl)-1-phenylethoxy]-1-methylazepane. Alternative names: Clemastine EP Impurity B.

It is supplied 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.

As a characterised impurity of Clemastine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Clemastine Fumarate Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Clemastine

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

Clemastine impurities

Specifications & identifiers

Chemical identifiers
Product name	Clemastine Fumarate Impurity B
Catalogue No.	VQ-036359
CAS Number	61771-18-4
IUPAC name	4-[1-(4-chlorophenyl)-1-phenylethoxy]-1-methylazepane
Molecular formula	C₂₁H₂₆ClNO
Molecular weight	343.9 g/mol
Exact mass	343.1703
Grade	Reference Standard
HSN code	38229090
InChIKey	HWYKTWVEFMQZJW-UHFFFAOYSA-N
SMILES	CC(C1=CC=CC=C1)(C2=CC=C(C=C2)Cl)OC3CCCN(CC3)C
PubChem CID	71392408

Physical properties
Physical form	Solid
LogP (XLogP3)	5
H-bond donors / acceptors	0 / 2
TPSA	12.5 Å²
Synonyms	Clemastine EP Impurity B, 4-[1-(4-Chlorophenyl)-1-phenylethoxy]-1-methylhexahydro-1H-azepine, 4-(1-(4-Chlorophenyl)-1-phenylethoxy)-1-methylazepane, 1H-Azepine, 4-[1-(4-chlorophenyl)-1-phenylethoxy]hexahydro-1-methyl-, 4-[1-(4-Chlorophenyl)-1-phenylethoxy]hexahydro-1-methyl-1H-azepine

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 Fumarate Impurity B?

The CAS Registry Number of Clemastine Fumarate Impurity B is 61771-18-4. It is also known as Clemastine EP Impurity B, 4-[1-(4-Chlorophenyl)-1-phenylethoxy]-1-methylhexahydro-1H-azepine, 4-(1-(4-Chlorophenyl)-1-phenylethoxy)-1-methylazepane.

What is the molecular formula and molecular weight of Clemastine Fumarate Impurity B?

Clemastine Fumarate Impurity B has the molecular formula C21H26ClNO and a molecular weight of 343.9 g/mol. Its IUPAC name is 4-[1-(4-chlorophenyl)-1-phenylethoxy]-1-methylazepane.

What is Clemastine Fumarate Impurity B used for?

Clemastine Fumarate Impurity B 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 Fumarate Impurity B can I order?

We supply Clemastine Fumarate Impurity B 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 Fumarate Impurity B?

Yes. Every lot of Clemastine Fumarate Impurity B 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 Fumarate Impurity B be shipped internationally?

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