CAS 517-89-5 appears in our catalog under these names: (R)-(+)-Shikonin, >95% (HPLC), Shikonin, Shikonin/ 98.54% (existing batch purity), Shikonin, 99%, Shikonin 97% (extract, contains ~8% S-enantiomer). Offered by: TRC, GLPBio, TargetMol, Chemat, Biosynth. Available pack sizes: 10mg, 50mg, 20mg, 5mg, 25mg, 100mg, 200mg, 500mg.