CAS 2797619-65-7 appears in our catalog under these names: 3-(2-((3-(2-(2,6-Dioxopiperidin-3-yl)-1,3-dioxoisoindolin-5-yl)prop-2-yn-1-yl)oxy)ethoxy)propanoic acid, 95%, 95%, Thalidomide-Propargyne-PEG2-COOH, 98.73%. Offered by: Chemat, MedChemExpress. Available pack sizes: 5mg, 10mg, 25mg, 10 mg, 25 mg, 50 mg, 100 mg, 5 mg.