Quinoline
Synonyms: 1-Azanaphthalene; 1-Benzazine; Benzopyridine; leucoline; benzo[b]pyridine; 1-benzine; chinoleine; chinoline; leucol; leukol; B-500.
Structure:
CAS RN: 91-22-5 Formula: 129.161
Melting point °C: -15 Boiling point °C: 238
MW: 129.161 Threshold: n/a
Importance in coffee: implicated in coffee's bitterness.
Proposed mechanism of formation: n/a
Other: Hydroscopic liquid with penetrating odor. Light sensitive. Soluble. <0.01 g/100 mL at 22.5 C in water. Density = 1.09. Vapor Density = 4.45.