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Revision as of 14:07, 13 November 2010 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Script assisted update of identifiers from ChemSpider, CommonChemistry and FDA for the Chem/Drugbox validation project - Updated: {{cascite}} StdInChI StdInChIKey SMILES.← Previous edit Latest revision as of 20:15, 1 November 2024 edit undoJWBE (talk | contribs)Extended confirmed users10,126 edits +Category:Anisidines; ±Category:AnilinesCategory:2-Aminophenyl compounds using HotCat 
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{{DISPLAYTITLE:''o''-Anisidine}} {{DISPLAYTITLE:''o''-Anisidine}}
{{chembox {{Chembox
| Verifiedfields = changed
| verifiedrevid = 310454918
| Watchedfields = changed
| verifiedrevid = 433349433
| Name = ''o''-Anisidine | Name = ''o''-Anisidine
| ImageFile = 2-Anisidine.png | ImageFileL1 = 2-Anisidine.png
| ImageSize = 120px | ImageSizeL1 = 120px
| ImageAltL1 = Skeletal formula of ''o''-anisidine
| IUPACName = 2-Methoxyaniline
| ImageFileR1 = O-Anisidine 3D ball.png
| Section1 = {{Chembox Identifiers
| ImageSizeR1 = 120
| InChI = 1/C7H9NO/c1-9-7-5-3-2-4-6(7)8/h2-5H,8H2,1H3
| ImageAltR1 = Ball-and-stick model of the ''o''-anisidine molecule
| SMILES = Nc1ccccc1OC
| PIN = 2-Methoxyaniline<ref name=iupac2013>{{cite book | title = Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book) | publisher = ] | date = 2014 | location = Cambridge | page = 669 | doi = 10.1039/9781849733069-00648 | isbn = 978-0-85404-182-4 | quote = The names ‘toluidine’, ‘anisidine’, and ‘phenetidine’ for which ''o''-, ''m''-, and ''p''- have been used to distinguish isomers, and ‘xylidine’ for which numerical locants, such as 2,3-, have been used, are no longer recommended, nor are the corresponding prefixes ‘toluidine’, ‘anisidino’, ‘phenetidine’, and ‘xylidino’.}}</ref>
| StdInChI = 1S/C7H9NO/c1-9-7-5-3-2-4-6(7)8/h2-5H,8H2,1H3
| OtherNames = ''ortho''-Anisidine<br>2-Anisidine<br />''ortho''-Aminoanisole<br />''o''-Methoxyaniline<br />2-Methoxy-1-aminobenzene<br />2-Methoxyphenylamine
|Section1={{Chembox Identifiers
| InChI = 1/C7H9NO/c1-9-7-5-3-2-4-6(7)8/h2-5H,8H2,1H3
| SMILES = Nc1ccccc1OC
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C7H9NO/c1-9-7-5-3-2-4-6(7)8/h2-5H,8H2,1H3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| ChEBI = 82288
| StdInChIKey = VMPITZXILSNTON-UHFFFAOYSA-N | StdInChIKey = VMPITZXILSNTON-UHFFFAOYSA-N
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 1612004
| CASNo = 90-04-0 | CASNo = 90-04-0
| CASNo_Ref = {{cascite|correct|CAS}} | CASNo_Ref = {{cascite|correct|CAS}}
| EC-number = 201-963-1 | EC_number = 201-963-1
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 13860775
| ChemSpiderID = 13860775
| UNNumber = 2431
| UNNumber = 2431
}}
| KEGG_Ref = {{keggcite|correct|kegg}}
| Section2 = {{Chembox Properties
| KEGG = C19191
| Reference = <ref>{{RubberBible62nd|page=C-98}}.</ref>
| PubChem = 7000
| Formula = C<sub>7</sub>H<sub>9</sub>NO
| RTECS = BZ5410000
| MolarMass = 123.15 g/mol
| Density = 1.092 g/ml | UNII = NUX042F201
}}
| MeltingPt = 6.2 °C
|Section2={{Chembox Properties
| BoilingPt = 224 °C
| Properties_ref = <ref>{{RubberBible62nd|page=C-98}}</ref>
| Density = 1.0923 g/cm<sup>3</sup>
| Solubility = 1.5 g/100 ml | C=7 | H=9 | N=1 | O=1
| Appearance = Yellow liquid, turns brown upon exposure to air
| SolubleOther = soluble in ], ], ], ]
| MeltingPtC = 6.2
}}
| BoilingPtC = 224
| Section7 = {{Chembox Hazards
| Density = 1.0923 g/cm<sup>3</sup>
| EUClass = Toxic ('''T''')<br/>{{Carc2}}<br/>{{Muta3}}
| Solubility = 1.5 g/100 ml
| EUIndex = 612-035-00-4
| SolubleOther = soluble in ], ], ], ]
| NFPA-H = 2
| MagSus = -80.44·10<sup>−6</sup> cm<sup>3</sup>/mol
| NFPA-F = 1
}}
| NFPA-R = 0
|Section7={{Chembox Hazards
| RPhrases = {{R45}}, {{R23/24/25}}, {{R68}}
| NFPA-H = 2
| SPhrases = {{S53}}, {{S45}}
| NFPA-F = 1
| FlashPt = 118 °C (open cup)
| NFPA-R = 0
| Autoignition = 415 °C
| FlashPtC = 118
}}
| FlashPt_notes = (open cup)
| Section8 = {{Chembox Related
| AutoignitionPtC = 415
| OtherCpds = ]<br/>]
| GHSPictograms = {{GHS06}}{{GHS08}}
}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|301|311|331|341|350}}
| PPhrases = {{P-phrases|201|202|261|264|270|271|280|281|301+310|302+352|304+340|308+313|311|312|321|322|330|361|363|403+233|405|501}}
| PEL = TWA 0.5 mg/m<sup>3</sup> <ref name=NIOSH>{{PGCH|0034}}</ref>
| MainHazards = potential occupational carcinogen<ref name=NIOSH/>
| IDLH = 50 mg/m<sup>3</sup><ref name=NIOSH/>
| REL = : Ca TWA 0.5 mg/m<sup>3</sup> <ref name=NIOSH/>
| LD50 = 2000 mg/kg (rat, oral)<br/> 1400 mg/kg (mouse, oral)<br/>870 mg/kg (rabbit, oral)<ref>{{IDLH|90040|''o''-Anisidine}}</ref>
}}
|Section8={{Chembox Related
| OtherCompounds = ]<br/>]
}}
}} }}


'''''o''-Anisidine''' ('''2-anisidine''') is an organic compound with the formula CH<sub>3</sub>OC<sub>6</sub>H<sub>4</sub>NH<sub>2</sub>. A colorless liquid, commercial samples can appear yellow owing to air oxidation. It is one of three isomers of the methoxy-containing ] derivative.
'''''o''-Anisidine''' is a yellow liquid with melting point -1 to 5 °C and density 1.09 g/cm³. The vapor pressure is 0.05 mbar at 20 °C but increases greatly with temperature. It has an aromatic smell and is well absorbed by inhalation, oral ingestion and skin contact. 2-Anisidine is a very toxic agent that causes blood, enzyme and nerve damage with ] and the danger of suffocation. The agent is an experimental ] and is strongly suspected to be also a human carcinogen. 2-Anisidine has dangerous pollutant properties for water.

==Production and use==
It is prepared via methanolysis of 2-chloronitrobenzene:<ref name=Booth>{{cite encyclopedia|author=Gerald Booth|chapter=Nitro Compounds, Aromatic|encyclopedia=Ullmann's Encyclopedia of Industrial Chemistry|year=2007|publisher=Wiley-VCH|location=Weinheim|doi=10.1002/14356007.a17_411|isbn=978-3527306732}}</ref>
:NaOCH<sub>3</sub> + ClC<sub>6</sub>H<sub>4</sub>NO<sub>2</sub> → CH<sub>3</sub>OC<sub>6</sub>H<sub>4</sub>NO<sub>2</sub> + NaCl
The resulting ] is reduced to ''o''-anisidine.

''o''-Anisidine is used in the manufacture of dyes. It is nitrated to give 4-nitroanisidine. It is also a precursor to ].

One special use is as a ] indicator. An acid solution of ''o''-anisidine is ] by adding a sodium nitrite solution. This mixture is applied to the wood and by reaction with ] in the heartwood a reddish brown ] is formed.

:] is an ] produced from ''o''-anisidine]]{{clear-left}}

==Safety and environmental aspects==
''o''-Anisidine is a dangerous pollutant from the production of dyes. It is listed as RCRA ], with the code K181.<ref>{{Cite web | url=http://www.epa.gov/osw/hazard/wastetypes/wasteid/dyes/index.htm | title=Hazardous Waste| date=2015-07-23}}</ref> The International Agency for Research on Cancer (IARC) has classified ''o''-anisidine as a Group 2B, possible human carcinogen.<ref>{{Cite web | url=https://pubchem.ncbi.nlm.nih.gov/compound/o-anisidine#section=Top |title = ''o''-Anisidine}}</ref>


==References== ==References==
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*{{PGCH|0034}} *{{PGCH|0034}}


{{DEFAULTSORT:Anisidine-2}} {{DEFAULTSORT:Anisidine, o-}}
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