o-Toluic acid
Appearance
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Names | |
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Other names
ortho-toluic acid
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.003.896 |
KEGG | |
PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C8H8O2 | |
Molar mass | 136.2 g/mol |
Density | 1.06 g/cm3 |
Melting point | 104–105 °C |
Boiling point | 259 °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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o-Toluic acid, also 2-methylbenzoic acid, is an aromatic carboxylic acid, with formula (CH3)C6H4(COOH). It is an isomer of p-toluic acid and m-toluic acid. When purified and recrystallized, o-toluic acid forms needle-shaped crystals. o-Toluic acid was first noticed by Sir William Ramsay, credited discoverer of the noble gases and winner of the 1904 Nobel Prize in Chemistry.