The chemical Velpatasvir has a designated molecular formula of C49H54N8O8 and a molecular weight of 883.019 g/mol. Synonyms may include: UNII-KCU0C7RS7Z, GS 5816, GS-5816, GS5816 (ChemID). Velpatasvir has been assigned a MeSH pharmacological action of: Antivirals.