CAS 1949793-41-2 appears in our catalog under these names: Mal–PEG4–Val–Cit–PAB, Mal-beta-Ala-PEG(4)-Val-Cit-PAB, Mal-PEG4-Val-Cit-PAB 95%, 1-(3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamido)-N-((S)-1-(((S)-1-((4-(hydroxymethyl)phenyl)amino)-1-oxo-5-ureidopentan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)-3,6,9,12-tetraoxapentadecan-15-amide, 95%, 95%, Mal-PEG4-Val-Cit-PAB, 99.12%. Offered by: GLPBio, Iris Biotech, Ambeed, Chemat, MedChemExpress. Available pack sizes: 10mg, 25mg, 100mg, 250mg, 50mg, 5 mg, 100 mg, 50 mg.