Relative to the other two networks, the γ-network is most likely to produce a stabilized QOOH radical. This species can undergo unimolecular reaction or reaction with O 2 (via addition of H-atom abstraction). Comparison of these reaction rates (high-pressure unimolecular reactions from this work, bimolecular reactions with O 2 by Sarathy et al. ) indicates that γQOOHα reacts almost entirely through bimolecular H-abstraction channel in air, forming HO 2 and a ketohydroperoxide, over the range of conditions in this study. If the subsequent peroxide bond breaks, following reactions similar to alkane-derived ketohydroperoxides, it is possible to get one HO 2 and two OH radicals from a single initiation, which could create a negative temperature coefficient region. However, since γQOOHα forms only below 500 K, this channel is unlikely to impact combustion significantly.