New 3-alkyl-4-sulfamoyl-aniline compounds of the formula ##SPC1## Wherein R.sub.1 is phenyl, furyl or thienyl; R.sub.2 is carboxyl or tetrazolyl-(5) R.sub.4 is a straight-chain or branched alkyl radical of from 2 to 5 carbon atoms; and n is 1 or 2; And the pharmacologically compatible salts thereof; are outstandingly effective saluretic compounds, particularly when administered enterally.