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Anthranilic acid

Anthranilic acid
IUPAC name 2-aminobenzoic acid
Other names vitamin L1, Anthranilate
CAS number 118-92-3
Molecular formula C7H7NO2
Molar mass 137.136 g/mol
Density 1.4 g/cm3
Boiling point

Sublimes above m.p.[1]

Solubility in water 0.6 g/L
Solubility Hot water
MSDS External (html)
R-phrases R36 R37
S-phrases S26 S39
Flash point >150 °C
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Anthranilic acid is the organic compound with the formula C6H4(NH2)CO2H. This amino acid is white solid when pure, although commercial samples may appear yellow. The molecule consists of a benzene ring with two adjacent functional groups, a carboxylic acid and an amine. Because these two groups are polar, this organic compound is highly soluble in water. It is sometimes referred to as vitamin L

Anthranilic acid is biosynthesized from chorismic acid. It is the precursor to the amino acid tryptophan via the attachment of a ribose to the amine group.


Anthranilic acid is used as an intermediate for production of dyes, pigments, and saccharin. It and its esters are used in preparing perfumes, pharmaceuticals and UV-absorber as well as corrosion inhibitors for metals and mold inhibitors in soya sauce.

Anthranilic acid can be used in organic synthesis to generate the benzyne intermediate.[2]

See also

  • Kynureninase


  1. ^ IPCS
  2. ^ Logullo, F. M.; Seitz, A. H.; Friedman, L. (1973). "Benzenediazonium-2-carboxy- and Biphenylene". Org. Synth.; Coll. Vol. 5: 54. 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Anthranilic_acid". A list of authors is available in Wikipedia.
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