CAS 133058-72-7 appears in our catalog under these names: KFM19/ 99.18% (existing batch purity), KFM19, 8-(3-Oxocyclopentyl)-1,3-dipropyl-7H-purine-2,6-dione, KFM19 99+%, KFM19, 99.44%. Offered by: TargetMol, GLPBio, Biosynth, Ambeed, Chemat. Available pack sizes: 1mg, 5mg, 10mg, 25mg, 50mg, 100mg, 5 mg, 25 mg.