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A positive ion EI-MS spectrum of the hydrocarbon product prepared by LiAlH4 reductive cleavage of di-O-geranylgeranyl-sn-glycerol-1-phosphate (unsaturated archaetidic acid). The hydrocarbon product was separated by GLC and the 3.0 min peak on the chromatogram shown in Figure 2 was subjected to MS. The lower part of the figure shows a possible fragmentation pattern of the hydrocarbon, which coincides well with the mass spectrum.
