CAS 182760-73-2 appears in our catalog under these names: Azido-PEG4-azide/ min. 98%, Azido–PEG4–azide, 1,14-Diazido-3,6,9,12-tetraoxatetradecane, 1,14-Diazido-3,6,9,12-tetraoxatetradecane, 95%, 95%, Azido-PEG4-azide, 99.68%. Offered by: TargetMol, GLPBio, Biosynth, Chemat, MedChemExpress. Available pack sizes: 5mg, 10mg, 25mg, 50mg, 100mg, 500mg, 250mg, 1g.