PROBLEM TO BE SOLVED: To provide a new quaternary ammonium sulfonate having in one molecule three or more hydroxy groups and useful as a surfactant material, pharmaceutical intermediate, organic chemical intermediate, polyurethane material, polyester material or the like.
SOLUTION: The new quaternary ammonium sulfonate is a quaternary ammonium N,N-bis(2-hydroxyalkyl)aminoethylsulfonate of general formula(1)( wherein, R
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