Product Name: Imiquimod CAS NO.:99011-02-6 Appearance:yellowish crystalline powder Product Name: Imiquimod CAS NO.:99011-02-6Appearance:yellowish crystalline powderMolecular Formula:C14H16N4Molecular Weight:240.31Assay:99%Packing: 5kgs, 25kgs cardboard drum lined with double-layer plastic bagStorage: Avoid light, closed tight, stored in dry place. Shelf life is 2 yrs.