Factory price Organic Vulcanization Accelerator O-Toluidine CAS 95-53-4 Dye Stuff Reagent Sample Available

o-toluidine is a kind of aromatic amine compound (aromatic amine is a compound composed of benzene ring and amino group). The methyl group is connected to different positions of the benzene ring, and the names are different. There are three isomers in the positions of o-, m- and p-methylaniline. There are three isomers of toluidine, namely o-methylaniline, m-methylaniline and p-methylaniline. o-Toluidine is an in-situ substitution product, and m-Toluidine is a displacement substitution product. o-Toluidine, also known as "o-aminotoluidine", is a colorless to light yellow liquid. It turns reddish brown when exposed to air and light, and forms a white precipitate when it meets formaldehyde. It is slightly soluble in water, soluble in dilute acid, alcohol and ether. Relative density: 1.004 (20ºC); melting point: -16.3ºC (β type), -24.4ºC (α type); boiling point: 199.7ºC; flash point: 85ºC; autoignition point: 482.2ºC; vapor density: 3.69. Its vapor and air can form an explosive mixture, and the maximum allowable concentration in the air is 5ppm. It can burn when exposed to open flames, and emit toxic gases when exposed to high temperatures. Its toxicity is similar to that of aniline. It is easy to form methemoglobin when it enters the body, causing neurological disorders and cyanosis. Ortho-toluidine is an important intermediate in the production of dyes and pigments. It can be used to prepare direct red 62, red base RL, red base G, red base GBC, basic fuchsin, color phenol AS-D, acid red 35, 158, 265, solvent red 124, diazo components and coupling components of azo dyes, and organic pigments yellow 14, 17, and blue 19; pesticide raw materials, production of pesticide fungicides "tricyclazole", insecticides chlorpyrifos; herbicide acetochlor; raw materials for rubber vulcanization accelerators; saccharin raw materials; corrosion inhibitor raw materials, etc. In organic synthesis, ortho-toluidine is also used to synthesize heterocyclic compounds such as indole and its derivatives.

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