CAS 134308-13-7 appears in our catalog under these names: Tolcapone, Tolcapone, 98%, Tolcapone, >95% (HPLC), Tolcapone/ 99.89% (existing batch purity), Tolcapone - Bio-X â„¢. Offered by: Chemat Brand, AmBeed, TRC, TargetMol, GLPBio. Available pack sizes: on request, 10mg, 100mg, 50mg, 5mg, 25mg, 200mg, 500mg.