Editing Mesitylene (section)

{{chembox
|Watchedfields = changed
|verifiedrevid = 444009999
|Name = Mesitylene
|ImageFileL1_Ref = {{chemboximage|correct|??}}
|ImageFileL1 = 1,3,5-Trimethylbenzene.svg
|ImageNameL1 = Mesitylene
|ImageClassL1 = skin-invert
|ImageFileR1 = Mesitylene-3D-vdW.png
|ImageNameR1 = Mesitylene
|PIN = 1,3,5-Trimethylbenzene<ref name=iupac2013>{{cite book | title =  Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book) | publisher = [[Royal Society of Chemistry|The Royal Society of Chemistry]] | date = 2014 | location = Cambridge | page = 139 | doi = 10.1039/9781849733069-FP001 | isbn = 978-0-85404-182-4}}</ref>
|OtherNames = Mesitylene<ref name=iupac2013 /><br />''sym''-Trimethylbenzene
|Section1 = {{Chembox Identifiers
|ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
|ChemSpiderID = 7659
|PubChem = 7947
|KEGG_Ref = {{keggcite|correct|kegg}}
|KEGG = C14508
|InChI = 1/C9H12/c1-7-4-8(2)6-9(3)5-7/h4-6H,1-3H3
|InChIKey = AUHZEENZYGFFBQ-UHFFFAOYAK
|StdInChI_Ref = {{stdinchicite|correct|chemspider}}
|StdInChI = 1S/C9H12/c1-7-4-8(2)6-9(3)5-7/h4-6H,1-3H3
|StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
|StdInChIKey = AUHZEENZYGFFBQ-UHFFFAOYSA-N
|CASNo_Ref = {{cascite|correct|CAS}}
|CASNo = 108-67-8
|UNII_Ref = {{fdacite|correct|FDA}}
|UNII = 887L18KQ6X
|EINECS = 203-604-4
|UNNumber = 2325
|ChEBI_Ref = {{ebicite|correct|EBI}}
|ChEBI = 34833
|SMILES = Cc1cc(cc(c1)C)C
}}
|Section2 = {{Chembox Properties
|Formula = C<sub>9</sub>H<sub>12</sub>
|MolarMass = 120.19 g/mol
|Density = 0.8637 g/cm<sup>3</sup> at 20 °C
|MeltingPtC = −44.8
|BoilingPtC = 164.7
|Appearance = Colorless liquid<ref name=PGCH/>
|Odor = Distinctive, aromatic<ref name=PGCH/>
|Solubility = 0.002% (20°C)<ref name=PGCH/>
|VaporPressure = 2 mmHg (20°C)<ref name=PGCH/>
|MagSus = −92.32·10<sup>−6</sup> cm<sup>3</sup>/mol
}}
|Section3 = {{Chembox Structure
|Dipole = 0.047 [[Debye|D]]<ref>{{Cite journal |doi = 10.1016/j.atmosenv.2004.01.019| title = Proton transfer reaction rate constants between hydronium ion (H<sub>3</sub>O<sup>+</sup>) and volatile organic compounds |year = 2004 |last1 = Zhao| first1 = Jun |last2 = Zhang |first2 = Renyi |journal = Atmospheric Environment |volume = 38 |issue = 14 |pages = 2177–2185 | bibcode = 2004AtmEn..38.2177Z }}</ref>
}}
|Section7 = {{Chembox Hazards
|ExternalSDS = [https://www.sigmaaldrich.com/BE/en/sds/sial/m7200?sdslanguage=en]
|FlashPtF = 122
|FlashPt_ref = <ref name=PGCH>{{PGCH|0639}}</ref>
|IDLH = N.D.<ref name=PGCH/>
|REL = TWA 25 ppm (125 mg/m<sup>3</sup>)<ref name=PGCH/> 
|PEL = none<ref name=PGCH/>
}}
}}

'''Mesitylene''' or '''1,3,5-trimethylbenzene''' is a derivative of [[benzene]] with three [[methyl]] [[substituent]]s positioned symmetrically around the ring. The other two isomeric [[trimethylbenzenes]] are [[1,2,4-trimethylbenzene]] (pseudocumene) and [[1,2,3-trimethylbenzene]] (hemimellitene). All three compounds have the [[chemical formula|formula]] C<sub>6</sub>H<sub>3</sub>(CH<sub>3</sub>)<sub>3</sub>, which is commonly abbreviated C<sub>6</sub>H<sub>3</sub>Me<sub>3</sub>. Mesitylene is a colorless liquid with sweet aromatic odor. It is a component of [[coal tar]], which is its traditional source. It is a precursor to diverse [[fine chemical]]s. The '''mesityl''' group (Mes) is a substituent with the formula C<sub>6</sub>H<sub>2</sub>Me<sub>3</sub> and is found in various other compounds.<ref name=Ullmanns/>