potassium 5-(3-ethylbenzothiazol-2(3H)-ylidene)-4-oxo-2-thioxothiazolidin-3-ethanesulphonate

5-[3-Ethylbenzothiazol-2(3H)-ylidene]-4-oxo-2-thioxo-3-thiazolidineethane-1-sulfonic acid potassium salt