CAS 1347760-82-0 appears in our catalog under these names: Propargyl-PEG3-acid/ min. 98%, Propargyl–PEG3–acid, Propargyl-PEG3-Carboxylic Acid, >98.0%(GC)(T), Propargyl-PEG3-acid 97%, PROPARGYL-PEG3-ACID. Offered by: TargetMol, GLPBio, TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 25mg, 1g, 250mg, 500mg, 5g, 50mg, 100mg, 50g.