preferred_name: N(3)-1,2-dicarboxyethyl-diaminobutanoate <=> (2S,3R)-diaminobutanoate + fumarate
preferred_name_lc: n(3)-1,2-dicarboxyethyl-diaminobutanoate <=> (2s,3r)-diaminobutanoate + fumarate
label: N(3)-1,2-dicarboxyethyl-diaminobutanoate <=> (2S,3R)-diaminobutanoate + fumarate
label_lc: n(3)-1,2-dicarboxyethyl-diaminobutanoate <=> (2s,3r)-diaminobutanoate + fumarate