Ketotifen fumarate

About Ketotifen fumarate

Ketotifen fumarate is a high-purity reference standard of Ketotifen carrying the CAS registry number 34580-14-8. Its molecular formula is C23H23NO5S and its molecular weight is 425.5 g/mol. It is also known as Ketotifen Famurate or Ketotifen hydrogen fumarate.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

As a reference sample of Ketotifen, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Ketotifen fumarate in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Ketotifen

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

Ketotifen impurities

Specifications & identifiers

Chemical identifiers
Product name	Ketotifen fumarate
Catalogue No.	VQ-022901
CAS Number	34580-14-8
IUPAC name	(E)-but-2-enedioic acid;2-(1-methylpiperidin-4-ylidene)-6-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),4,10,12-pentaen-8-one
Molecular formula	C₂₃H₂₃NO₅S
Molecular weight	425.5 g/mol
Exact mass	425.1297
Grade	Reference Standard
HSN code	38229090
InChIKey	YNQQEYBLVYAWNX-WLHGVMLRSA-N
SMILES	CN1CCC(=C2C3=C(C(=O)CC4=CC=CC=C42)SC=C3)CC1.C(=C/C(=O)O)\C(=O)O
PubChem CID	5282408

Physical properties
Physical form	Solid
H-bond donors / acceptors	2 / 7
TPSA	123 Å²
Synonyms	Ketotifen Famurate, Ketotifen hydrogen fumarate, HC 20,511 fumarate, HC-20511 fumarate, Ketotifen (as fumarate), Itchy Eye, Eye Itch, Eye Itch Releif, Eye Itch Relief, Allergy Eye Drops, Fumarate, Ketotifen, Equate Eye Itch Relief

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

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 fumarate?

The CAS Registry Number of Ketotifen fumarate is 34580-14-8. It is also known as Ketotifen Famurate, Ketotifen hydrogen fumarate, HC 20,511 fumarate.

What is the molecular formula and molecular weight of Ketotifen fumarate?

Ketotifen fumarate has the molecular formula C23H23NO5S and a molecular weight of 425.5 g/mol.

What is Ketotifen fumarate used for?

Ketotifen fumarate 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 fumarate can I order?

We supply Ketotifen fumarate 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 fumarate?

Yes. Every lot of Ketotifen fumarate 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 fumarate be shipped internationally?

Yes. Ketotifen fumarate is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.