post date: jan 17,2022 expiry date: jul 16,2022 detailed description: cas no. :1378388-22-7 product name:9-bromo-3-chloro-10,11-dihydro-5h-benzo[d]naphtho[2,3-b]pyran-8(9h)-onecas no.:1378388-22-7velpatasvir intermediate cas registry number: 1378388-22-7