The method of manufacturing an organic compound having a sulfo group, a manufacturing method and hydrolysis method of an organic compound having a fluorosulfonyl group of the liquid composition

To provide a method for producing an organic compound having a small number of steps, and a small amount of waste liquid in efficiently hydrolyzing sulfo group of the organic compound having a fluorosulfonyl group. An organic compound having a fluorosulfonyl group is contacted with subcritical water at 200 to 320 ° C. to convert the sulfo group of the fluorosulfonyl group, method for producing an organic compound having a sulfo group.