preferred_name: dimethyl sulfide + AH2 = methane + methanethiol + A
preferred_name_lc: dimethyl sulfide + ah2 = methane + methanethiol + a
label: dimethyl sulfide + AH2 = methane + methanethiol + A
label_lc: dimethyl sulfide + ah2 = methane + methanethiol + a