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