2-Naphthylamine

2-Naphthylamine is also known as β-Naphthylamine, it is white to pink shiny flaky crystal, it is volatile with water vapor. It is harmful, carcinogenic, the International Institute for Cancer Research (IARC) put benzidine, 2-Naphthylamine and 4-aminobiphenyl as a human carcinogen (evidence), we should be particularly careful. The relative density is 1.0614 (98/4℃), m.p. is 111~113℃, boiling point is 306℃. It is insoluble in water, but soluble in hot water, ethanol, ether and benzene etc. Aqueou
Beta-naphthylamine appears as a white to reddish colored solid in the form of flakes. Slightly soluble in hot water and denser than water. Toxic by ingestion, inhalation and skin absorption. Used to make dyes and agricultural chemicals.|Solid|WHITE-TO-REDDISH FLAKES WITH CHARACTERISTIC ODOUR. TURNS RED ON EXPOSURE TO AIR.|Odorless, white to red crystals with a faint, aromatic odor.|Odorless, white to red crystals with a faint, aromatic odor. [Note: Darkens in air to a reddish-purple color.]
Beta-naphthylamine appears as a white to reddish colored solid in the form of flakes. Slightly soluble in hot water and denser than water. Toxic by ingestion, inhalation and skin absorption. Used to make dyes and agricultural chemicals.|2-naphthylamine is a naphthylamine carrying the amino group at position 2. It has a role as a carcinogenic agent.|2-Naphthylamine is a synthetic, air-sensitive, colorless crystalline solid that is soluble in hot water, alcohol, ether and many organic solvents. Currently, it is only used in laboratory research. Because the commercial production and use of 2-naphthylamine are banned, the potential for human exposure is low. The general population may be exposed to this chemical through inhalation of emissions from sources where nitrogen-containing organic matter is burned, such as coal furnaces and cigarettes. At greatest risk of occupational exposure to 2-naphthylamine are laboratory technicians and scientists who use it in research. Acute inhalation exposure to high levels of 2-naphthylamine can result in methemoglobinemia, dyspnea, ataxia, hematuria, dysuria and hemorrhagic cystitis. It is known to be a human carcinogen. (NCI05)|A naphthalene derivative with carcinogenic action.