4,5-dihydro-2-isoheptadecyl-1-methyl-1-[2-[(1-oxoisooctadecyl)amino]ethyl]-1H-imidazolium methyl sulphate C??? ??, ??, ??

4,5-dihydro-2-isoheptadecyl-1-methyl-1-[2-[(1-oxoisooctadecyl)amino]ethyl]-1H-imidazolium methyl sulphate ?? ?? ? ???

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4,5-dihydro-2-isoheptadecyl-1-methyl-1-[2-[(1-oxoisooctadecyl)amino]ethyl]-1H-imidazolium methyl sulphate ?? ??