[{"from": "human", "value": "Describe this molecule. [C][C][N][Branch1][N][C][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2][C][=Branch1][C][=N][N]"}, {"from": "gpt", "value": "The molecule is also noteworthy in being a substrate for a polymorphic cytochrome P-450 enzyme. Persons with certain isoforms of this enzyme are unable to properly metabolize this and many other clinically important drugs. They are commonly referred to as having a debrisoquin 4-hydroxylase polymorphism."}]