hannah at chembj dot com skype: live:hannah_2165 Name: cyproheptadine hydrochloride sesquihydrate (Related Reference) EINECS: 213-535-1 Molecular Formula: C21H21N?HCl CAS Registry Number: 41354-29-4 Synonyms: Cyproheptadine Hcl Appearance: white to slightly yellowish crystalline solid Molecular Weight: 377.90492 Density: g/cm3 Boiling Point: 440.1 °C at 760 mmHg Melting Point: 165 °C (dec.)(lit.) Flash Point: 194.5 °C Solubility: soluble in water, freely soluble in methanol, sparingly soluble in ethanol, soluble in chloroform, and practically insoluble in ether.