CAS 1361390-56-8 appears in our catalog under these names: RR–11a, RR-11a 98%, (5S,8S,E)-2,5-Dioxopyrrolidin-1-yl 11-(2-amino-2-oxoethyl)-5,8-dimethyl-3,6,9,12-tetraoxo-1-phenyl-2-oxa-4,7,10,11-tetraazapentadec-13-en-15-oate, 98%, 98%, RR-11a, 98.08%. Offered by: GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 10mg, 100mg, 1g, 25mg, 250mg, 50mg, 1mg, 5mg.