Chemical CH3 (CH2)10 CH2 (OCH2 CH2)2 OSO3 Na . Structure . CAS 6 . Registry No. INCI Name Sodium Laureth Sulfate . Chemical STEOL CS-270 C is an aqueous concentrated sodium lauryl ether sulfate derived from fatty alcohols, Description ethoxylated to an average of two moles, and sulfated via Stepan's continuous SO3 process.