CAS NO.: 14976-57-9 Molecular Formula: C21H26ClNO.C4H4O4 Molecular Weight: 459.97 Characteristics: white or most white crystalline powder, odorless, a little bitter taste. Light soluble in methanol, minimal soluble in water or chloromethane. Quality Standard: USP Usage: Raw material. Clemadtine fumarate is one kind of antiallergic pharmaceutical. Bag / drum.