TMK-013003
Ketotifen EP Impurity F Hemifumarate (Mixture of Enol and Ketone)
4-(1-Methylpiperidin-4-ylidene)-4,10-dihydro-9H-benzo[4,5]cyclohepta[1,2-b]thiophen-9-one 4-(1-methylpiperidin-4-ylidene)-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-9-ol fumarate
Open
C19H19NOS.1/2C4H4O4