tributylbenzylammonium 4-hydroxynaphthalene-1-sulfonate;TRI(N-BUTYL)BENZYLAMMONIUM4-HYDROXYNAPHTHALENE-1-SULPHONATE;N,N,N-TRIBUTYLBENZENEMETHANAMINIUM SALT WITH 4-HYDROXY-1- NAPHTHALENESULFONIC ACID);benzyltributylammonium 4-hydroxynaphthalene-1-sulphonate;tributylbenzenemethanaminium/ 4-hydroxynaphthalenesulfonic