CAS 1807534-82-2 appears in our catalog under these names: Azido-PEG4-NHS-ester, Azido–PEG4–NHS–ester, Azido-peg4-ch2co2nhs 95%, 2,5-Dioxopyrrolidin-1-yl 14-azido-3,6,9,12-tetraoxatetradecanoate, 96%, 96%, Azido-PEG4-NHS-ester, 96.0%. Offered by: TargetMol, GLPBio, Biosynth, Ambeed, Chemat. Available pack sizes: 2mg, 5mg, 0,1g, 0,05g, 0,25g, 1g, 0,5g, 100mg.