preferred_name: 2-hydroxyethane-1-sulfonate + AH2 <=> ethanol + sulfite + A + H(+)
preferred_name_lc: 2-hydroxyethane-1-sulfonate + ah2 <=> ethanol + sulfite + a + h(+)
label: 2-hydroxyethane-1-sulfonate + AH2 <=> ethanol + sulfite + A + H(+)
label_lc: 2-hydroxyethane-1-sulfonate + ah2 <=> ethanol + sulfite + a + h(+)