CAS 1802908-01-5 appears in our catalog under these names: Bis–sulfone–PEG3–Azide, N-[2-[2-[2-(2-Azidoethoxy)ethoxy]ethoxy]ethyl]-4-[3-[(4-methylphenyl)sulfonyl]-2-[[(4-methylphenyl)sulfonyl]methyl]-1-oxopropyl]benzamide, 99.00%, 99.00%, Bis-sulfone-PEG3-Azide, 99.42%. Offered by: GLPBio, Chemat, MedChemExpress. Available pack sizes: 5mg, 1mg, 5 mg.