CAS 850180-76-6 appears in our catalog under these names: N3-C2-NHS ester, N3–C2–NHS ester, 3-Azidopropanoate-N-hydroxysuccinimide ester, (2,5-Dioxopyrrolidin-1-yl) 3-azidopropanoate, 98%, 98%, N3-C2-NHS ester, 99.77%. Offered by: TargetMol, GLPBio, Biosynth, Chemat, MedChemExpress. Available pack sizes: 2mg, 5mg, 10mg, 1g, 100mg, 500mg, 25mg, 50mg.