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Ketotifen fumarate, 99%

Product Code. 15485889
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250 mg
1 g
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1g
250mg
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Product Code. 15485889 Supplier Thermo Scientific Alfa Aesar Supplier No. J63708.MD
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Estimated Shipment: 23-10-2026
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Description

CAS: 34580-14-8 | C23H23NO5S | 425.499 g/mol

Ketotifen fumaratin is an H1 receptor antagonist. In its ophthalmic form, it is used to treat allergic conjunctivitis, or the itchy red eyes caused by allergies.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Solubility
Soluble in water (10 mg/ml), DMSO (100 mM), and methanol.

Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from strong oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 34580-14-8
Molecular Formula C23H23NO5S
Molecular Weight (g/mol) 425.499
MDL Number MFCD00079394
InChI Key YNQQEYBLVYAWNX-WLHGVMLRSA-N
Synonym ketotifen fumarate, zaditen, ketotifen hydrogen fumarate, alaway, unii-hbd503woro, hc 20,511 fumarate, ketotifen fumarate usan:jan, ketotifen fumarate salt, hbd503woro
PubChem CID 5282408
IUPAC Name (E)-but-2-enedioic acid;10-(1-methylpiperidin-4-ylidene)-5H-benzo[1,2]cyclohepta[3,4-b]thiophen-4-one
SMILES CN1CCC(=C2C3=C(C(=O)CC4=CC=CC=C42)SC=C3)CC1.C(=CC(=O)O)C(=O)O

Specifications

Color White
Quantity 250 mg
Merck Index 14,5307
Solubility Information Soluble in water (10mg/ml),DMSO (100 mM),and methanol.
Formula Weight 425.5
Percent Purity 99%
Physical Form Powder
Chemical Name or Material Ketotifen fumarate

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