摘要 |
PURPOSE:Compounds of the formula (R is 1 - 20C alkyl or alkenyl; X is S, SO, SO2; Y is H, 2 - 20C alkanoyl or alkenoyl, SO3M, PO3M2, or polyoxyalkylene having 1 - 20 units of oxyethylene or oxypropylene; M is H, alkali metal, or alkaline earth metal). |