S1 Supporting Information Dual Reactivity of Hydroxy- and Methoxy- Substituted o-Quinonemethides in Aqueous Solutions: Hydration versus Tautomerization. Selvanathan Arumugam, Vladimir V. Popik * Department of Chemistry, University of Georgia, Athens, Georgia, 30602 vpopik@chem.uga.edu Table of contents: Tables of Raw Kinetic Data ………………...………….…………..……S2 NMR Spetra …………. .…………………………..….………………..…..S11