CAS 1654740-73-4 appears in our catalog under these names: Fmoc–NH–PEG1–C2–acid, FmocNH-PEG1-CH2CH2COOH 97%, Fmoc-NH-PEG1-C2-acid, 99.91%, 3-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethoxy)propanoic acid, 97%, 97%, 3-(2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)ethoxy)propanoic acid, 97%. Offered by: GLPBio, Ambeed, MedChemExpress, Chemat, Fluorochem. Available pack sizes: 1g, 500mg, 100mg, 250mg, 5g, 25g, 5 g, 1 g.