1-Propanaminium, 3-butoxy-2-hydroxy-N-(2-hydroxy-3-sulfopropyl)-N,N-dimethyl-, inner salt (9CI, ACI)
3-[(3-Butoxy-2-hydroxypropyl)(dimethyl)azaniumyl]-2-hydroxy-1-propanesulfonate
3-[(3-Butoxy-2-hydroxypropyl)(dimethyl)azaniumyl]-2-hydroxypropane-1-sulfonate