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2-Methyl-5-nitroaniline Basic information
2-Methyl-5-nitroaniline Chemical Properties
  • Melting point:103-106 °C(lit.)
  • Boiling point:294.61°C (rough estimate)
  • Density 1.2333 (estimate)
  • refractive index 1.6276 (estimate)
  • storage temp. 2-8°C
  • pka2.34±0.10(Predicted)
  • form Crystalline Powder
  • color Ochre to yellow-orange
  • Water Solubility <0.1 g/100 mL at 19 ºC
  • BRN 879021
  • Stability:Stable. Incompatible with strong oxidizing agents, acid chlorides, acid anhydrides, acids, chloroformates.
  • CAS DataBase Reference99-55-8(CAS DataBase Reference)
  • IARC3 (Vol. 48) 1990
  • NIST Chemistry ReferenceBenzenamine, 2-methyl-5-nitro-(99-55-8)
  • EPA Substance Registry System2-Methyl-5-nitroaniline (99-55-8)
Safety Information
  • Hazard Codes T,Xi
  • Risk Statements 23/24/25-40-52/53
  • Safety Statements 36/37-45-61
  • RIDADR UN 2660 6.1/PG 3
  • WGK Germany 3
  • RTECS XU8225000
  • Hazard Note Irritant
  • TSCA Yes
  • HazardClass 6.1
  • PackingGroup III
  • HS Code 29214300
  • Hazardous Substances Data99-55-8(Hazardous Substances Data)
  • ToxicityLD50 orl-rat: 574 mg/kg NCIMR* NIH-71-E-2144,73
2-Methyl-5-nitroaniline Usage And Synthesis
  • Chemical Propertiesyellow powder
  • Chemical Properties5-Nitro-o-toluidine is a yellow, crystalline solid.
  • Uses5-Nitro-o-toluidine is used in the synthesis of numerous dyes.
  • DefinitionChEBI: A C-nitro compound in which the nitro compound is meta to the amino group and para to the methyl group of o-toluidine.
  • General DescriptionBright yellow powder.
  • Air & Water ReactionsInsoluble in water. 2-Methyl-5-nitroaniline is sensitive to moisture, light, or prolonged exposure to air.
  • Reactivity Profile2-Methyl-5-nitroaniline is incompatible with strong oxidizing agents, acids, acid chlorides, acid anhydrides and chloroformates.
  • Fire HazardFlash point data for 2-Methyl-5-nitroaniline are not available; however, 2-Methyl-5-nitroaniline is probably combustible.
  • Safety ProfileConfirmed carcinogen with experimental carcinogenic data. Moderately toxic by ingestion. Mutation data reported. Decomposes exothermically when heated to 150℃. When heated to decomposition it emits toxic fumes of NOx. See also NITRO COMPOUNDS OF AROMATIC HYDROCARBONS.
  • CarcinogenicityThere are no data available for evaluating carcinogenic risk to humans. When 5-nitro-o-toluidine was administered in a dietary feeding study to F344 rats (50 or 100 ppm) and B6C3F1 mice (1200 or 2300 ppm) of both sexes, hepatocellular carcinomas were produced in mice but not in rats.
  • ShippingUN2660 Nitrotoluidines (mono), Hazard Class: 6.1; Labels: 6.1-Poisonous materials.
  • Purification MethodsAcetylate the aniline, and the acetyl derivative is crystallised to constant melting point; then hydrolyse it with 70% H2SO4 and the free base is regenerated by treatment with NH3 [Bevan et al. J Chem Soc 4284 1956]. [Beilstein 12 H 844. 12 IV 1807.]
  • IncompatibilitiesIncompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, acid chlorides; acid anhydrides; chloroformates.
  • Waste DisposalConsult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.
2-Methyl-5-nitroaniline Preparation Products And Raw materials
2-Methyl-5-nitroaniline(99-55-8)Related Product Information
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