CAS 1613752-50-3 appears in our catalog under these names: Propargyl–PEG9–acid, Propargyl-PEG9-acid 95%, 4,7,10,13,16,19,22,25,28-Nonaoxahentriacont-30-ynoic acid, 95%, 95%, Propargyl-PEG9-acid. Offered by: GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 1g, 100mg, 250mg, 5g, 1 g, 50 mg, 100 mg, 25 mg.