preferred_name: chlorophyllide a + 2 H(+) => pheophorbide a + Mg(2+)
preferred_name_lc: chlorophyllide a + 2 h(+) => pheophorbide a + mg(2+)
label: chlorophyllide a + 2 H(+) => pheophorbide a + Mg(2+)
label_lc: chlorophyllide a + 2 h(+) => pheophorbide a + mg(2+)