N-Desmethyl Azelastine

Name: N-Desmethyl Azelastine
Brand: Vaqora Chemicals
SKU: VQ-021703

About N-Desmethyl Azelastine

N-Desmethyl Azelastine (CAS 47491-38-3) is a metabolite or degradation product of Azelastine offered by Vaqora Chemicals. Its molecular formula is C21H22ClN3O and its molecular weight is 367.9 g/mol. The IUPAC name is 2-(azepan-4-yl)-4-[(4-chlorophenyl)methyl]phthalazin-1-one. Common synonyms include N-Desmethyl Azelastine Hydrochloride and Azelastine N-Desmethyl Analog.

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. Good laboratory practice and suitable PPE are recommended during handling.

Analytical teams use this compound to identify metabolites and degradants of Azelastine, to validate stability-indicating methods (AMV) and to support QC and regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Azelastine

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

Azelastine impurities

Specifications & identifiers

Chemical identifiers
Product name	N-Desmethyl Azelastine
Catalogue No.	VQ-021703
CAS Number	47491-38-3
IUPAC name	2-(azepan-4-yl)-4-[(4-chlorophenyl)methyl]phthalazin-1-one
Molecular formula	C₂₁H₂₂ClN₃O
Molecular weight	367.9 g/mol
Exact mass	367.1451
Grade	Reference Standard
HSN code	38229090
InChIKey	WRYCMIFVXDQIKN-UHFFFAOYSA-N
SMILES	C1CC(CCNC1)N2C(=O)C3=CC=CC=C3C(=N2)CC4=CC=C(C=C4)Cl
PubChem CID	162558

Physical properties
Physical form	Solid
LogP (XLogP3)	3.9
H-bond donors / acceptors	1 / 3
TPSA	44.7 Å²
Synonyms	N-Desmethyl Azelastine Hydrochloride, Azelastine N-Desmethyl Analog, Desmethylazelastine, 1(2H)-Phthalazinone, 4-((4-chlorophenyl)methyl)-2-(hexahydro-1H-azepin-4-yl)-, 4-(4-Chlorobenzyl)-2-(perhydroazepinyl-(4))-1(2H)-phthala zinone, 2-(azepan-4-yl)-4-(4-chlorobenzyl)phthalazin-1(2H)-one, Demethylazelastine, 4-(4-Chlorobenzyl)-2-(perhydroazepinyl-(4))-1(2H)-phthalazinone, 1(2H)-Phthalazinone,4-[(4-chlorophenyl)methyl]-2-(hexahydro-1H-azepin-4-yl)-, 2-(Azepan-4-yl)-4-[(4-chlorophenyl)methyl]phthalazin-1(2H)-one, 4-(4-chlorobenzyl)-2-(hexahydroazepin-4-yl)-1-(2H)-phthalazinone, 4-[(4-chlorophenyl)methyl]-2-(hexahydro-1H-azepin-4-yl)-l (2H)-phthalazinone

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 N-Desmethyl Azelastine?

The CAS Registry Number of N-Desmethyl Azelastine is 47491-38-3. It is also known as N-Desmethyl Azelastine Hydrochloride, Azelastine N-Desmethyl Analog, Desmethylazelastine.

What is the molecular formula and molecular weight of N-Desmethyl Azelastine?

N-Desmethyl Azelastine has the molecular formula C21H22ClN3O and a molecular weight of 367.9 g/mol. Its IUPAC name is 2-(azepan-4-yl)-4-[(4-chlorophenyl)methyl]phthalazin-1-one.

What is N-Desmethyl Azelastine used for?

N-Desmethyl Azelastine is supplied as a characterised reference material related to Azelastine. 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 N-Desmethyl Azelastine can I order?

We supply N-Desmethyl Azelastine 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 N-Desmethyl Azelastine?

Yes. Every lot of N-Desmethyl Azelastine 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 N-Desmethyl Azelastine be shipped internationally?

Yes. We export N-Desmethyl Azelastine worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.