Synonyms: benzene,1,1’-oxybis-,tetrapropylenederivs.,sulfonated,sodiumsalts;benzene,1,1’-oxybis-tetrapropylenederivatives,sulfonated,;benzene,1,1’-oxybis-tetrapropylenederivatives,sulfonated,sodium;1-Propene tetramer-oxybisbenzene, sulfonated, sodium salt;Tetrapropyl-(sulfophenoxy)-benzenesulfonic acid disodium salt