4-Piperidino-1-[5-[(1-O-hexadecyl-2-O-ethyl-L-glycero-3-phospho)oxy]pentyl]pyridinium C??? ??, ??, ??

4-Piperidino-1-[5-[(1-O-hexadecyl-2-O-ethyl-L-glycero-3-phospho)oxy]pentyl]pyridinium ?? ?? ? ???

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4-Piperidino-1-[5-[(1-O-hexadecyl-2-O-ethyl-L-glycero-3-phospho)oxy]pentyl]pyridinium ?? ??