Donepezil EP Impurity E

Name: Donepezil EP Impurity E
Brand: Vaqora Chemicals
SKU: VQ-022429

About Donepezil EP Impurity E

Vaqora Chemicals supplies Donepezil EP Impurity E, a pharmacopeial impurity of Donepezil registered under CAS number 231283-82-2. Its molecular formula is C24H24BrNO3 and its molecular weight is 454.4 g/mol. The IUPAC name is 2-[(1-benzylpyridin-1-ium-4-yl)methyl]-5,6-dimethoxy-2,3-dihydroinden-1-one bromide. It is also known as Donepezil - Impurity E (Bromide Salt) or Donepezil Impurity E Bromide Salt.

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.

As a characterised impurity of Donepezil, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are 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

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

Industries

Related to Donepezil

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

Donepezil impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Donepezil EP Impurity E
Catalogue No.	VQ-022429
CAS Number	231283-82-2
IUPAC name	2-[(1-benzylpyridin-1-ium-4-yl)methyl]-5,6-dimethoxy-2,3-dihydroinden-1-one bromide
Molecular formula	C₂₄H₂₄BrNO₃
Molecular weight	454.4 g/mol
Exact mass	453.094
Grade	Reference Standard
HSN code	38229090
InChIKey	SJDPCJIYDYUWEN-UHFFFAOYSA-M
SMILES	COC1=C(C=C2C(=C1)CC(C2=O)CC3=CC=[N+](C=C3)CC4=CC=CC=C4)OC.[Br-]
PubChem CID	10204472

Physical properties
Physical form	Solid
H-bond donors / acceptors	0 / 4
TPSA	39.4 Å²
Synonyms	Donepezil - Impurity E (Bromide Salt), Donepezil Impurity E Bromide Salt, 1-Benzyl-4-((5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2-yl)methyl)pyridin-1-ium bromide, 1-Benzyl-4-[(5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2-yl)methyl]pyridin-1-ium bromide, 1-benzyl-4-[(5,6-dimethoxy-1-oxoindan-2-yl)methyl]pyridinium bromide

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 Donepezil EP Impurity E?

The CAS Registry Number of Donepezil EP Impurity E is 231283-82-2. It is also known as Donepezil - Impurity E (Bromide Salt), Donepezil Impurity E Bromide Salt, 1-Benzyl-4-((5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2-yl)methyl)pyridin-1-ium bromide.

What is the molecular formula and molecular weight of Donepezil EP Impurity E?

Donepezil EP Impurity E has the molecular formula C24H24BrNO3 and a molecular weight of 454.4 g/mol. Its IUPAC name is 2-[(1-benzylpyridin-1-ium-4-yl)methyl]-5,6-dimethoxy-2,3-dihydroinden-1-one bromide.

What is Donepezil EP Impurity E used for?

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

We supply Donepezil EP Impurity E 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 Donepezil EP Impurity E?

Yes. Every lot of Donepezil EP Impurity E 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 Donepezil EP Impurity E be shipped internationally?

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