1,4-Benzenediol, 2-methyl-

• Formula: C₇H₈O₂
• Molecular weight: 124.1372
• IUPAC Standard InChI: InChI=1S/C7H8O2/c1-5-4-6(8)2-3-7(5)9/h2-4,8-9H,1H3 Copy

  
• IUPAC Standard InChIKey: CNHDIAIOKMXOLK-UHFFFAOYSA-N Copy
• CAS Registry Number: 95-71-6
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Species with the same structure:
  • 1,4-Benzenediol, 2-methyl-
• Other names: Hydroquinone, methyl-; p-Toluhydroquinol; p-Toluhydroquinone; p-Toluquinol; Methyl-p-hydroquinone; Methylhydroquinone; Toluhydroquinone; Toluquinol; Tolylhydroquinone; THQ; 2-Methyl-1,4-Benzenediol; 2-Methylhydroquinone; 2,5-Dihydroxytoluene; 1,4-Dihydroxy-2-methylbenzene; 2,5-Toluenediol; 2-Methyl-p-hydroquinone; 2-Methyl-1,4-hydroquinone; NSC 4962; 2-Methyl-1,4-benzenediol (2-methylhydroquinone)
• Information on this page:
  • Phase change data
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Enthalpy of fusion

Gas Chromatography

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, custom temperature program

View large format table.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Ribeiro da Silva and Lobo Ferreira, 2009
Ribeiro da Silva, Manuel A.V.; Lobo Ferreira, Ana I.M.C., Experimental standard molar enthalpies of formation of some methylbenzenediol isomers, The Journal of Chemical Thermodynamics, 2009, 41, 10, 1096-1103, https://doi.org/10.1016/j.jct.2009.04.015 . [all data]

Verevkin, 1999
Verevkin, Sergey P., Substituent effects on the benzene ring. Prediction of the thermochemical properties of alkyl substituted hydroquinones, Phys. Chem. Chem. Phys., 1999, 1, 1, 127-131, https://doi.org/10.1039/a806706f . [all data]

Zhao, Li, et al., 2008
Zhao, Y.; Li, J.; Xu, Y.; Duan, H.; Fan, W.; Zhao, G., EXtraction, preparation and identification of volatile compounds in Changyu XO brandy, Chinese J. Chromatogr., 2008, 26, 2, 212-222, https://doi.org/10.1016/S1872-2059(08)60014-0 . [all data]

Notes

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• Symbols used in this document:
  

  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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