CAS 2324154-35-8 appears in our catalog under these names: 3-(2-(2-(2-((2-(2,6-Dioxopiperidin-3-yl)-1,3-dioxoisoindolin-4-yl)oxy)ethoxy)ethoxy)ethoxy)propanoic acid 98%, Thalidomide-O-PEG3-COOH. Offered by: Ambeed, MedChemExpress. Available pack sizes: 50mg, 100mg, 250mg, 1g, 250 mg, 25 mg, 50 mg, 100 mg.