CAS 1334172-75-6 appears in our catalog under these names: Biotin–PEG7–azide, Biotin-PEG(7)-N3, Biotin-dPEG®,7-Azide, Biotin-PEG7-azide 98+%, N-(23-Azido-3,6,9,12,15,18,21-heptaoxatricosyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide, 98+%, 98+%. Offered by: GLPBio, Iris Biotech, Biosynth, Ambeed, Chemat. Available pack sizes: 1g, 250mg, 500mg, 100mg, 1000mg, 50mg, 25 mg, 50 mg.