CAS 297162-50-6 appears in our catalog under these names: NH2-PEG6-C1-Boc, NH2–PEG6–C1–Boc, H2N-PEG6-CH2COOtBu 95%, 1,1-Dimethylethyl 20-amino-3,6,9,12,15,18-hexaoxaeicosanoate, 98%, 98%, NH2-PEG6-C1-Boc, 99.83%. Offered by: TargetMol, GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 10mg, 25mg, 50mg, 100mg, 1g, 5mg, 250mg, 5g.