Melting point 237 °C Formula C7H5NO4 | Molar mass 167.1189 g/mol Density 1.58 g/cm³ | |
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Related compounds Appearance Light yellow crystalline powder | ||
4-Nitrobenzoic acid is an organic compound with the formula C6H4(NO2)CO2H. It is a pale yellow solid. It is a precursor to 4-nitrobenzoyl chloride, the precursor to the anestheic Procaine and folic acid. It is also a precursor to 4-aminobenzoic acid.
Contents
Production
4-Nitrobenzoic acid is prepared by oxidation of 4-nitrotoluene using oxygen or dichromate as oxidants.
Alternatively, it has been prepared by nitration of polystyrene followed by oxidation of the alkyl substituent. This method proceeds with improved para/ortho selectivity owing to the steric protection of the ortho positions by the polymer backbone.
Safety
This compound has a rat LD50 of 1960 mg/kg.
References
4-Nitrobenzoic acid Wikipedia(Text) CC BY-SA