C19H19N3O3 explained

The molecular formula C₁₉H₁₉N₃O₃ may refer to:

• MMPIP, a drug used in scientific research that acts as a selective antagonist for the metabotropic glutamate receptor subtype mGluR7
• Talampanel, a drug which has been investigated for the treatment of epilepsy, malignant gliomas, and amyotrophic lateral sclerosis