Rupatadine fumarate

Structural formula:

Molecular formula:C₂₆H₂₆ClN₃ · C₄H₄O₄

Molecular weight:532.03

Appearance:white to white-like powder

Loss on drying:≤ 0.5% ;

Residue on ignition:≤ 0.2% ;

Heavy metal:≤ 20ppm ;

Single contaminant:≤ 0.5% ;

Miscellaneous:≤ 1.0% ;

Purity:≥ 98.5%