Synonyms: 1-Propanaminium,3-carboxy-N,N,N-trimethyl-2-[(1-oxo-9-octadecenyl)oxy]-, inner salt, (Z)-(?à)-; 1-Propanaminium,3-carboxy-N,N,N-trimethyl-2-[[(9Z)-1-oxo-9-octadecenyl]oxy]-, inner salt (9CI);Ammonium, (3-carboxy-2-hydroxypropyl)trimethyl-, hydroxide, inner salt, oleate,(?à)- (8CI); 1-Propanaminium,3-carboxy-N,N,N-trimethyl-2-[(1-oxo-9-octadecenyl)oxy]-, inner salt, (Z)-