preferred_name: 1-propanol + butanoyl-CoA <=> propyl butanoate + CoA
preferred_name_lc: 1-propanol + butanoyl-coa <=> propyl butanoate + coa
label: 1-propanol + butanoyl-CoA <=> propyl butanoate + CoA
label_lc: 1-propanol + butanoyl-coa <=> propyl butanoate + coa