preferred_name: 3-hydroxypropanoate(in) => 3-hydroxypropanoate(out)
preferred_name_lc: 3-hydroxypropanoate(in) => 3-hydroxypropanoate(out)
label: 3-hydroxypropanoate(in) => 3-hydroxypropanoate(out)
label_lc: 3-hydroxypropanoate(in) => 3-hydroxypropanoate(out)