ribavirin

Ribavirin/36791-04-5 Assay: 98.5%~101.5% Chromatographic purity: single impurity<0.28% total impurities<1.0%

Ribavirin/ virazole

C8H12N4O5=244.205Standard: USP28, BP2003, EP5

Features:1) Description: a white crystalline powder, odorless, free of visible contamination2) Identification: IR spectrum conforms to reference standard3) Specific rotation: -33.0 ~ -37.0o (dried basis at 20oC)4) Loss on drying: ≤0.5%5) PH: 4.0 ~ 6.56) Sulphated ash: ≤0.1%7) Heavy metals: ≤0.001%8) Related substances    a) Impurity F: ≤0.1%    b) Any other impurity: ≤0.1%    c) Total impurities: ≤0.2%9) Disregard limit: 0.05%10) Assay (dried basis): 98.0% ~ 102.0%

ribavirin