CAS 1615234-93-9 appears in our catalog under these names: Amino-PEG4-propionic trifluoroacetic acid, 3-[2-[2-[2-(2-Aminoethoxy)ethoxy]ethoxy]ethoxy]propanoic acid 2,2,2-trifluoroacetate, 97%, 97%. Offered by: Biosynth, Chemat. Available pack sizes: 2g, 1g, 5g, 10g, 25g, 100mg, 250mg.