1H-Imidazole-5-carboxaldehyde; 1H-Imidazole-4-carboxaldehyde; Imidazole-4(or 5)-carboxaldehyde; Imidazole-4-carboxaldehyde (8CI); 1H-Imidazol-4-carboxaldehyde; 1H-Imidazol-4-ylcarboxaldehyde; 1H-Imidazol-5-carboxaldehyde; 1H-Imidazole-4-carboxaldehyde; 3H-Imidazole-4-carboxaldehyde; 4(5)-Imidazolecarboxaldehyde; 4-Formylimidazole; 5-Imidazolecarboxaldehyde; NSC 400521;

4-Imidazolecarboxaldehyde is a 4-formyl derivative of imidazole used in the preparation of C17,20-lyase inhibitor for the treatemnet of androgen-dependent prostate cancer. 4-Imidazolecarboxaldehyde is also used in the synthesis of other biologically active compounds such as antimalarial drugs.