Methyl 4-formyl-1-methyl-1H-pyrrole-2-carboxylate (CAS NO.67858-47-3), its Synonyms are Methyl 4-formyl-1-methyl-1h-pyrrole-2-carboxylate, 95+% ; 4-Formyl-2-methoxycarbonyl-N-methylpyrrole .