o-Toluidine

Synonyms: 2-Methyl-1-aminobenzene; 2-methyl-anilin; 2-methylbenzamine; o-Toluidine, 99.5%; o-toluChemicalbookidinesolution; O-TOLUIDINEOEKANAL, 250MG; O-TOLUIDINE, STANDARDFORGC; O-TOLUIDINE, 100MG, NEAT

CAS Number: 95-53-4
Molecular formula: C7H9N
Molecular weight: 107.15
EINECS number: 202-429-0

Related categories: biochemical reagents; azo dyes; amines; general reagents; pyridazine; azo; 24 prohibited azo dyes; organic building blocks; Azodye; Amines; Aromatics; pesticide intermediates; other fungicides; fungicides intermediate; aromatic; BuildingBlocks; C7; ChemicalSynthesis; NitrogenCompounds; OrganicBuildingBlocks; SZ; TLCReagents; organic chemicals; amine; IntermediatesofDyesandPigmenChemicalbookts; MutagenesisResearchChemicals; TLCVisualizationReagents (alphabeticsort); AnalyticalReagents; Analytical / Chromatography; DerivatizationReagents; DerivatizationReagentsTLC; NaturalDyes; HematologyandHistology; StainsandDyes ;amine

Chemical properties: Light yellow flammable liquid, which turns reddish brown when exposed to air and sunlight. Slightly soluble in water, soluble in ethanol and ether.

Purpose:
1) Used as intermediates for dyes, pesticides, medicines and organic synthesis
2) Used as analytical reagents and dye intermediates, and also used in organic synthesis
3) Ortho-toluidine is the middle of the fungicides tricyclazole, metalaxyl, furoxaline, insecticides and acaricides dimethamidine, lilacan, herbicides ibutachlor, napachlor, acetochlor, etc. It is also the main intermediate of the dye Chemicalbook. It can produce maroon base GBC, big red base G, red base RL, naphthol As-D, acid red 3B, basic fuchsin, etc., and can produce reactive dyes.
4) It is used to produce dye products such as maroon base GBC, big red base G, red base RL, naphthol ASD, acid pink 3B, basic fuchsin and basic pink T, as well as pesticides insecticide, saccharin, vulcanization promotion Agent, beneficiation agent toluene arsenic acid, etc.

Production method:

1)obtained by reduction of o-nitrotoluene. The reduction reaction can use iron powder as a reducing agent, and can also be hydrogenated in the presence of a copper catalyst at 260-280°C to obtain o-methyl Chemicalbook aniline. The content of o-toluidine in industrial products (total amino content) is above 99%, and the hydrogenation reduction method consumes 1,300 kg of o-nitrotoluene and 940 m3 of hydrogen per ton of product.

2)The preparation method is prepared by catalytic hydrogenation reduction of o-nitrotoluene. Due to the different hydrogenation catalysts, the reaction conditions are different. For example, a copper catalyst is used, and the reaction temperature is 260°C. Nickel catalysts can also be used.