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Polyoxyl 40 stearate

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polyoxyl 40 stearate

A mixture of the monostearate and distearate esters of a condensation polymer, H(OCH2CH2)n-OCOC16H32CH3 (n is approximately 40); it is a nonionic surface-active agent used as an emulsifying agent in hydrophilic ointment and other emulsions.