chxubo@ hotmail.com CAS NO 154361-50-9 ( 158798-73-3) Molecular Formula C15H22FN3O6 Molecular Weight 359.35 Property White or white-like crystal Specific rotatory power + 96.0 ~ + 100.0 Frying loss The loss should be less than 3% . Ignition residue No less than 0.1% . Heavy Metal No less than 20 ppm. Use Antineoplastic USP32