CAS 1312309-64-0 appears in our catalog under these names: N3–PEG2–C2–NHS ester, Azido-PEG2-NHS ester, N3-PEG2-C2-NHS ester 95%, 2,5-Dioxopyrrolidin-1-yl 3-(2-(2-azidoethoxy)ethoxy)propanoate, 95%, 95%, N3-PEG2-C2-NHS ester, 98.72%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, MedChemExpress. Available pack sizes: 100mg, 250mg, 50mg, 0,5g, 0,25g, 1g, 5g, 10g.