Ketotifen EP Impurity E

About Ketotifen EP Impurity E

Ketotifen EP Impurity E is a pharmacopeial impurity of Ketotifen carrying the CAS registry number 1346603-71-1. The compound has the formula C19H19NOS, corresponding to a molecular weight of 309.4 g/mol. The IUPAC name is 2-(1-methylpiperidin-4-ylidene)-4-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),5,10,12-pentaen-8-one. Common synonyms include Ketotifen Fumarate EP Impurity E and Ketotifen Fumarate - Impurity E.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Ketotifen to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Ketotifen EP Impurity E 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 Ketotifen

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

Ketotifen impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Ketotifen EP Impurity E
Catalogue No.	VQ-022904
CAS Number	1346603-71-1
IUPAC name	2-(1-methylpiperidin-4-ylidene)-4-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),5,10,12-pentaen-8-one
Molecular formula	C₁₉H₁₉NOS
Molecular weight	309.4 g/mol
Exact mass	309.1187
Grade	Reference Standard
HSN code	38229090
InChIKey	UCYPVYBPZVSJME-UHFFFAOYSA-N
SMILES	CN1CCC(=C2C3=CC=CC=C3CC(=O)C4=C2SC=C4)CC1
PubChem CID	71668858

Physical properties
Physical form	Solid
LogP (XLogP3)	2.9
H-bond donors / acceptors	0 / 3
TPSA	48.6 Å²

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 Ketotifen EP Impurity E?

The CAS Registry Number of Ketotifen EP Impurity E is 1346603-71-1. It is also known as Ketotifen Fumarate EP Impurity E, Ketotifen Fumarate - Impurity E, 4-Oxo Ketotifen.

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

Ketotifen EP Impurity E has the molecular formula C19H19NOS and a molecular weight of 309.4 g/mol. Its IUPAC name is 2-(1-methylpiperidin-4-ylidene)-4-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),5,10,12-pentaen-8-one.

What is Ketotifen EP Impurity E used for?

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

We supply Ketotifen 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 Ketotifen EP Impurity E?

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

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