CAS 227777-31-3 appears in our catalog under these names: (3S,8aS)-Hexahydro-3-((1R)-1-hydroxyethyl)pyrrolo(1,2-a)pyrazine-1,4-dione, Cyclo(–Pro–Thr), Cyclo(Pro-Thr) (Bulk), Cyclo(-Pro-Thr), Cyclo(Pro-Thr), 98.15%. Offered by: TRC, GLPBio, Biosynth, MedChemExpress. Available pack sizes: 250mg, 1g, 25mg, 500mg, 1000mg, 2000mg, 50 mg, 5 mg.