CAS 1485489-28-8 appears in our catalog under these names: Sulfo-dibenzocyclooctyne-biotin conjugate for Copper-free Click Chemistry, 98%, DBCO–Sulfo–Link–biotin TEA, DBCO-Sulfo-Link-biotin (TEA), 99.38%. Offered by: Chemat Brand, GLPBio, MedChemExpress. Available pack sizes: on request, 1mg, 5mg, 1 mg, 5 mg.