trans-urocanate + H2O => 4-imidazolone-5-propanoate
trans-urocanate + h2o => 4-imidazolone-5-propanoate
trans-urocanate + H2O => 4-imidazolone-5-propanoate
trans-urocanate + h2o => 4-imidazolone-5-propanoate