CAS 1113025-21-0 appears in our catalog under these names: (S)-METHYL 4-(TRITYLAMINO)CYCLOPENT-1-ENECARBOXYLATE, 98%, 98%, Methyl (4S)-4-(tritylamino)cyclopent-1-ene-1-carboxylate, 98%. Offered by: Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 1g.