Ribavirin (Tribavirin,Viramid,Virazole,Rbv)

Features:
1) Description: a white crystalline powder, odorless, free of visible contamination
2) Identification: IR spectrum conforms to reference standard
3) Specific rotation: -33.0 ~ -37.0^o (dried basis at 20^oC)
4) Loss on drying: ≤0.5%
5) PH: 4.0 ~ 6.5
6) 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%