Anthranilic acid
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Names | |
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IUPAC name
2-aminobenzoic acid
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Other names
vitamin L1, Anthranilate
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.003.898 |
CompTox Dashboard (EPA)
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Properties | |
C7H7NO2 | |
Molar mass | 137.138 g·mol−1 |
Density | 1.4 g/cm3 |
Melting point | 146–148 °C[1] |
5.7 g/L (25 °C) | |
Solubility | Hot water |
Hazards | |
NFPA 704 (fire diamond) | |
Flash point | >150 °C |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Anthranilic acid is the organic compound with the formula C6H4(NH2)COOH. 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. It is sometimes referred to as vitamin L.
Biological role
Anthranilic acid is biosynthesized from chorismic acid. It is the precursor to the amino acid tryptophan via the attachment of phosphoribosyl pyrophosphate to the amine group.
Uses
Anthranilic acid is used as an intermediate for production of dyes, pigments, and saccharin. It and its esters are used in preparing perfumes to imitate jasmine and orange, pharmaceuticals (loop diuretics eg. furosemide) 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]
It is also a DEA List I Chemical because of its use in making the now-widely outlawed euphoric sedative drug methaqualone (Quaalud, Mandrax).[3]
See also
References
- ^ IPCS
- ^ Logullo, F. M.; Seitz, A. H.; Friedman, L. (1973). "Benzenediazonium-2-carboxy- and Biphenylene". Organic Syntheses
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: CS1 maint: multiple names: authors list (link); Collected Volumes, vol. 5, p. 54. - ^ Angelos SA, Meyers JA. The isolation and identification of precursors and reaction products in the clandestine manufacture of methaqualone and mecloqualone. Journal of Forensic Sciences. 1985 Oct;30(4):1022-47. PMID 3840834