CAS 26661-13-2
It is the intermediate of Sofosbuvir
Appearance: White to off-white crystalline powder
Moisture: less than 0.2%
Loss on drying: less than 0.5%
Residue on Ignition: less than 0.5%
Cytosine: less than 0.5%
Benzoic acid: less than 0.5%
Single unknown impurity: less than 0.5%
Total impurities: less than 1.0%
Purity: more than 99.0%