CAS NO:36791-04-5 Ribavirin Name Ribavirin Synonyms 1-beta-D-Ribofuranosyl-1,2,4-triazole-3-carboxamide; Ribavirin; RTCA; Tribavirin; Vilona; Viramid; Virazid; Virazole; Biopolymers; ICN-1229 Molecular Formula C8H12N4O5 Molecular Weight 244.21 CAS Registry Number 36791-04-5 /widelychemical Melting point 174-176 oC Water solubility >=10 g/100 mL at 19 oC Loss on dry: less than 0.5% Residue on ignition: less than 0.1% PH: 4.0-6.5 Heavy metal: less than 10ppm Assay: 98.5-101.5