preferred_name: 12,18-didecarboxysiroheme + 2 CO2 => siroheme + 2 H(+)
preferred_name_lc: 12,18-didecarboxysiroheme + 2 co2 => siroheme + 2 h(+)
label: 12,18-didecarboxysiroheme + 2 CO2 => siroheme + 2 H(+)
label_lc: 12,18-didecarboxysiroheme + 2 co2 => siroheme + 2 h(+)