Normal butyl benzene, also known as NBB, has a chemical formula of C10H14 and a molar mass of 134.222 g mol-1. It is a colorless liquid with a distinct aromatic odor and is generally found in a liquid state at room temperature. It has a boiling point of 183.3 °C, a melting point of -87.9 °C, and a vapor pressure of 1.03 mmHg at 23°C.