3-Pyridinecarboxaldehyde,4-iodo-2-methoxy- , its cas register number is 158669-26-2. It also can be called 4-Iodo-2-methoxy-3-pyridinecarboxaldehyde ; 4-Iodo-2-methoxynicotinaldehyde ; 4-iodo-2-methoxypyridine-3-carboxaldehyde .