preferred_name: cholesterol + a fatty acid + H(+) => a cholesterol ester + H2O
preferred_name_lc: cholesterol + a fatty acid + h(+) => a cholesterol ester + h2o
label: cholesterol + a fatty acid + H(+) => a cholesterol ester + H2O
label_lc: cholesterol + a fatty acid + h(+) => a cholesterol ester + h2o