CAS 119438-10-7 appears in our catalog under these names: Poly(oxy-1,2-ethanediyl), α-(4-nonylphenyl)-ω-(3-sulfopropoxy)-, potassium salt (1:1), Poly(ethylene glycol) (Ca. 20 eo) 4-non. Offered by: Chemat, Sigma-Aldrich. Available pack sizes: 1g, 5g, 25g, 100g, 250G.