O-Toluic acid 3298397 225385293 2008-07-13T11:57:29Z JaGa 2092487 replace with SVG, add ref {{lowercase|o-Toluic acid}} {{Chembox new | Name = ''o''-Toluic acid | ImageFile = O-Toluic acid.svg | ImageSize = 100px | ImageName = | OtherNames = ''ortho''-toluic acid | Reference = <ref>[http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=8373&loc=ec_rcs O-TOLUIC ACID - Compound Summary], [[PubChem]].</ref> | Section1 = {{Chembox Identifiers | CASOther = 118-90-1 | SMILES = c1(C)ccccc1C(=O)O }} | Section2 = {{Chembox Properties | Formula = C<sub>8</sub>H<sub>8</sub>O<sub>2</sub> | MolarMass = 136.2 g/mol | Density = 1.06 g/cm<sup>3</sup> | MeltingPt = 107 °C | BoilingPt = 259 °C }} }} '''''o''-Toluic acid''', also '''2-methylbenzoic acid''', is an [[aromatic]] [[carboxylic acid]], with formula (CH<sub>3</sub>)C<sub>6</sub>H<sub>4</sub>(COOH). It is an isomer of [[P-Toluic acid|''p''-toluic acid]] and [[M-Toluic acid|''m''-toluic acid]]. When purified and recrystallized, ''o''-toluic acid will form 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]]. ==References== {{reflist}} {{DEFAULTSORT:Toluic acid, o-}} [[Category:Benzoic acids]] [[Category:Aromatic compounds]] {{aromatic-stub}}