<unk> , also known as 1-azanaphthalene, 1-benzazine, or benzo[b]pyridine, is a heterocyclic aromatic organic compound. It has the formula C9H7N and is a colourless hygroscopic liquid with a strong odour.
As it ages, if exposed to light, the liquid tends to become yellow and later brown. It is only slightly soluble in water but dissolves readily in many organic solvents.<unk>  is an intermediate in metallurgical processes and in dye, polymer, and agrochemical production. It is also a preservative, disinfectant, and solvent.
It is toxic: short-term exposure to the vapour causes irritation of the nose, eyes, and throat as well as dizziness and nausea. Longer-term effects are uncertain, but<unk>  has been linked to liver damage.
Quinoline
Pemoline
Indoramin
Triprolidine
Didanosine
Tilidine
Cicletanine
Boldenone