Lyso-PAF C-16-d4 contains four deuterium atoms at the 7, 7'', 8, and 8'' positions of the hexadecyl moiety. It is intended for use as an internal standard for the quantification of PAF C-16 by GC- or LC-mass spectrometry. Lyso-PAF C-16 can be formed by either the action of PAF-AH on PAF C-16, or by the action of a CoA-independent transacylase on 1-O-hexadecyl-2-acyl-glycerophosphocholine. Lyso-PAF C-16 is a substrate for either PAF C-16 formation by the remodeling pathway or selective acylation with arachidonic acid by a CoA-independent transacylase.
