1.12.5.1 H2 + 2,3-dimethyl-1,4-naphthoquinone - 260128 1.12.5.1 H2 + 2,3-dimethyl-1,4-naphthoquinone a hydrophilic analogue of menaquinone 260128 1.12.5.1 H2 + benzyl viologen - 260129 1.12.5.1 H2 + menaquinone - 388864