CAS 9038-95-3 appears in our catalog under these names: POLY(ETHYLENE GLYCOL-RAN-PROPYLENE GLYC&, Ethylene oxide-propylene oxide copolymer monobutyl ether, Mw 4000, MW:4000, Ethylene oxide-propylene oxide copolymer monobutyl ether, Mw 1000, Poly(ethylene glycol-ran-propylene glycol) monobutyl ether average Mn ~3000, Poly(ethylene glycol-ran-propylene glycol) monobutyl ether, average Mn ~3000. Offered by: Sigma-Aldrich, Fluorochem, Ambeed. Available pack sizes: 1L, 500g, 1kg, 1000g, 100g.