CAS 81840-15-5 appears in our catalog under these names: Vesnarinone (OPC–8212), Vesnarinone/ 98.13% (existing batch purity), 6-(4-(3,4-Dimethoxybenzoyl)piperazin-1-yl)-3,4-dihydroquinolin-2(1H)-one, 98+%, 98+%, Vesnarinone, 98.58%, Vesnarinone (Standard). Offered by: GLPBio, TargetMol, Chemat, MedChemExpress. Available pack sizes: 5mg, 1mg, 2mg, 10mg, 25mg, 50mg, 100mg, 10mM (in 1ml dmso).