Synonyms: 3,5,9-Trioxa-4-phosphaheptacos-18-en-1-aminium,4-hydroxy-N,N,N-trimethyl-10-oxo-7-[(1-oxo-9-octadecenyl)oxy]-, hydroxide,inner salt, 4-oxide, (E,E)-; 3,5,9-Trioxa-4-phosphaheptacos-18-en-1-aminium,4-hydroxy-N,N,N-trimethyl-10-oxo-7-[[(9E)-1-oxo-9-octadecenyl]oxy]-, innersalt, 4-oxide, (18E)- (9CI); Choline, phosphate, ester with 1,2-dielaidin(7CI); 1,2-Di(trans-9-octadecenoyl)phosphatidylcholine;3,5,9-Trioxa-4-phosphaheptacos-18-en-1-aminium,4-hydroxy-N,N,N-trimethyl-10-oxo-7-[(1-oxo-9-octadecenyl)oxy]-, inner salt,4-oxide, (E,E)-; DEPC; Dielaidoylphosphatidylcholine