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. Author manuscript; available in PMC: 2015 Oct 21.
Published in final edited form as: Anal Chem. 2014 Oct 6;86(20):10397–10405. doi: 10.1021/ac502886c

Figure 1.

Figure 1

Structures of organophosphorus nerve agent–tyrosine adducts. GA–Tyr, R1 = ethyl and R2 = dimethylamino; GB–Tyr, R1 = isopropyl and R2 = methyl; GD–Tyr, R1 = pinacolyl and R2 = methyl; GF–Tyr, R1 = cyclohexyl and R2 = methyl; VR–Tyr, R1 = isobutyl and R2 = methyl; VX/VM–Tyr, R1 = ethyl and R2 = methyl. VX and VM adducts to tyrosine cannot be differentiated.