acetaldehyde + sulfite + H(+) => 2-hydroxyethane-1-sulfonate
acetaldehyde + sulfite + h(+) => 2-hydroxyethane-1-sulfonate
acetaldehyde + sulfite + H(+) => 2-hydroxyethane-1-sulfonate
acetaldehyde + sulfite + h(+) => 2-hydroxyethane-1-sulfonate