preferred_name: methyl ethyl sulfide + AH2 = ethane + methanethiol + A
preferred_name_lc: methyl ethyl sulfide + ah2 = ethane + methanethiol + a
label: methyl ethyl sulfide + AH2 = ethane + methanethiol + A
label_lc: methyl ethyl sulfide + ah2 = ethane + methanethiol + a