A sulfonate derivative represented by the formula ##STR1## wherein R.sub.1 is lower alkyl, lower alkoxy or halogen, l is an integer of from 0 to 3, n is 0 or 1, A is straight-chain or branched-chain alkylene having 1 to 4 carbon atoms, and R.sub.2 is hydrogen or lower alkyl but, when n is 0 or 1 and A is straight-chain alkylene with 1 to 4 carbon atoms, is not hydrogen and the method for preparing the same.
                            一种
磺酸衍
生物,其
化学式为##STR1##其中R.sub.1为低烷基,低烷氧基或卤素,l为0到3的整数,n为0或1,A为直链或支链烷基,具有1到4个碳原子,R.sub.2为氢或低烷基,但当n为0或1且A为具有1到4个碳原子的直链烷基时,不为氢,并且提供其制备方法。