CAS 117786-94-4 appears in our catalog under these names: m-dPEG®,37-acid, Hydroxy-PEG14-acid Mw~4000, O-(2-CARBOXYETHYL)POLYETHYLENE GLYCOL 30, O-(2-CARBOXYETHYL)POLYETHYLENE GLYCOL, &, Poly(oxy-1,2-ethanediyl), α-(2-carboxyethyl)-ω-hydroxy-. Offered by: Biosynth, Ambeed, Sigma-Aldrich, Chemat, Fluorochem. Available pack sizes: 1000mg, 100mg, 50mg, 250mg, 1g, 500MG.