1-Octadecyl-sn-glycero-3-phosphocholine 2,5,9-Trioxa-4-phosphaheptacosan-1-aminium, 4,7-dihydroXY-N,N,N-trimethyl-, hydroxide, inner salt, 4-oxide, (+-)- 4,7-DihydroXY-N,N,N-trimethyl-2,5,9-trioxa-4-phosphaheptacosan-1-aminium hydroxide, inner salt, 4-oxide, (+-)- 72490-82-5