3,5,9-Trioxa-4-phosphaheptacos-18-en-1-aminium, 7-(hexadecyloxy)-4-hydroxy-N,N,N-trimethyl-, hydroxide, inner salt, 4-oxide, (Z)-(+-)- 66767-75-7 O-Hexadecyl O-(1-octadec-9-enyl)phosphatidylcholine Oppc ether