preferred_name: sphinganine + octadecanoate => N-(octadecanoyl)-sphinganine + H2O
preferred_name_lc: sphinganine + octadecanoate => n-(octadecanoyl)-sphinganine + h2o
label: sphinganine + octadecanoate => N-(octadecanoyl)-sphinganine + H2O
label_lc: sphinganine + octadecanoate => n-(octadecanoyl)-sphinganine + h2o