CAS 52438-12-7 appears in our catalog under these names: Isobutylshikonin, Isobutylshikonin/ 98.75% (existing batch purity), (R)-1-(5,8-Dihydroxy-1,4-dioxo-1,4-dihydronaphthalen-2-yl)-4-methylpent-3-en-1-yl isobutyrate, Isobutylshikonin, 99.93%. Offered by: GLPBio, TargetMol, Chemat, MedChemExpress. Available pack sizes: 1mg, 5mg, 10mg, 25mg, 50mg, 100mg, 5 mg, 10 mg.