preferred_name: xanthine + H2O + NAD+ => urate + NADH + H+ (Gallus gallus)
preferred_name_lc: xanthine + h2o + nad+ => urate + nadh + h+ (gallus gallus)
label: xanthine + H2O + NAD+ => urate + NADH + H+ (Gallus gallus)
label_lc: xanthine + h2o + nad+ => urate + nadh + h+ (gallus gallus)