TABLE 1.

Molecular and fragment ion peaks in spectrum of O-deacylated 40917 (A) and intact 31481 LOS (B)

^a DPLA represents 2-amino-2-deoxy-d-hexose and 2,3-diamino-2,3-dideoxy-d-hexose (HexN-HexN3N) with two phosphate (P) and three hydroxymyristic acid (C14:0(3-OH)) moieties after O-deacylation.

^b Italics represent non-reducing terminal B-type OS fragment ions from prompt fragmentation.

^c Non-reducing terminal B-type OS fragment ions from prompt fragmentation with loss of CO₂.

^d Bold represents reducing terminal Y-type LA fragment ions from prompt fragmentation.

^e Prompt fragmentation producing LA ions with loss of H₃PO₄.

^f DPLA represents HexN-HexN3N with two phosphate (P), four hydroxymyristic acid (C14:0(3-OH)), and two palmitic acid (C16:0) moieties.