preferred_name: sym-homospermidine + propane-1,3-diamine => putrescine + spermidine
preferred_name_lc: sym-homospermidine + propane-1,3-diamine => putrescine + spermidine
label: sym-homospermidine + propane-1,3-diamine => putrescine + spermidine
label_lc: sym-homospermidine + propane-1,3-diamine => putrescine + spermidine