|CompTox Dashboard (EPA)|
|Chemical and physical data|
|Molar mass||218.209 g/mol g·mol−1|
|3D model (JSmol)|
Heptobarbital (Rutonal), also known as phenylmethylbarbituric acid is a barbiturate derivative. It has often been confused with methylphenobarbital because both drugs contain a methylphenyl moiety and are overall very similar in structure.