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2-Nitrobenzoic acid

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2-Nitrobenzoic acid Basic information
2-Nitrobenzoic acid Chemical Properties
  • Melting point:146-148 °C(lit.)
  • Boiling point:295.67°C (rough estimate)
  • Density 1,58 g/cm3
  • refractive index 1.6280 (estimate)
  • storage temp. Sealed in dry,Room Temperature
  • solubility 7.8g/l
  • pka2.16(at 18℃)
  • form Fine Powder
  • Specific Gravity1.58
  • color Off-white
  • Water Solubility 6.8 g/L
  • Merck 14,6588
  • BRN 1910632
  • Stability:Stable. Incompatible with strong oxidizing agents, strong bases.
  • CAS DataBase Reference552-16-9(CAS DataBase Reference)
  • NIST Chemistry ReferenceBenzoic acid, 2-nitro-(552-16-9)
  • EPA Substance Registry Systemo-Nitrobenzoic acid (552-16-9)
Safety Information
2-Nitrobenzoic acid Usage And Synthesis
  • Chemical Propertiesoff-white powder
  • UsesNH2-protecting reagent.
  • Uses2-Nitrobenzoic Acid is used as a reagent in the synthesis of several organic compounds including that of novel triazoles and a tetrazole of escitalopram which act as cholinesterase inhibitors. It is also used in the one pot synthesis of 1,4-disubstituted 1,2,3-triazoles.
  • DefinitionChEBI: A nitrobenzoic acid carrying the nitro substituent at position 2.
  • Synthesis Reference(s)The Journal of Organic Chemistry, 56, p. 5924, 1991 DOI: 10.1021/jo00020a040
    Tetrahedron Letters, 35, p. 219, 1994 DOI: 10.1016/S0040-4039(00)76515-4
  • General DescriptionYellowish white crystals with an intensely sweet taste.
  • Air & Water ReactionsInsoluble in water.
  • Reactivity Profile2-Nitrobenzoic acid is incompatible with strong oxidizing agents. Also incompatible with strong bases. May react with cyanides .
  • Health HazardACUTE/CHRONIC HAZARDS: When 2-Nitrobenzoic acid is heated to decomposition it emits very toxic fumes.
  • Fire HazardFlash point data concerning 2-Nitrobenzoic acid are not available, however, 2-Nitrobenzoic acid is probably combustible.
  • Purification MethodsCrystallise the acid from *benzene (twice), n-butyl ether (twice), then water (twice). Dry and store it in a vacuum desiccator. [Le Noble & Wheland J Am Chem Soc 80 5397 1958.] It has also been crystallised from EtOH/H2O. The amide has m 176.5o (from H2O). [Beilstein 9 III 1466, 9 IV 1046.]
2-Nitrobenzoic acid Preparation Products And Raw materials
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