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. Author manuscript; available in PMC: 2017 Mar 11.
Published in final edited form as: Chem Res Toxicol. 2017 Feb 3;30(2):689–698. doi: 10.1021/acs.chemrestox.6b00414

Figure 1. LC-ESI-MS/MS chromatogram of (R, S) CEdG.

Figure 1

A. Representative ion chromatogram of (R, S)-CEdG in urine (top panel) and 15N5-(R, S)-CEdG isotopic standard (bottom panel). Mass transitions used for identification and quantification indicated in the inset. B. Structure of the DNA-AGE CEdG (m/z 340). Dashed arrow indicates the primary fragmentation giving rise to the mass transitions indicated in A. Asterisk (*) indicates the chiral center.