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Impurity reference standard material

Ketotifen Fumarate EP Impurity G

Material overview

Ketotifen Fumarate EP Impurity G (AY-0036-005) — impurity reference standard material. CAS 43076-16-0, formula C19H17NO2S, molecular weight 323.41 g/mol. Request technical documentation and current availability.

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Technical identifiers

Catalog number
AY-0036-005
CAS number
43076-16-0
Molecular formula
C19H17NO2S
Molecular weight
323.41 g/mol
Category
Impurity reference standard material
Chemical name
4-(1-methylpiperidin-4-ylidene)-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-9,10-dione.
Synonyms
9,10-Dioxo Ketotifen; 9,10-Dioxo Ketotifen
SMILES
O=C(C1=O)C2=CC=CC=C2/C(C3=C1SC=C3)=C4CCN(C)CC\4
Light sensitive
No
Hygroscopic
No

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Storage

Refrigerator

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