1,2-Benzenediol, 3-methoxy-

• Formula: C₇H₈O₃
• Molecular weight: 140.1366
• IUPAC Standard InChI: InChI=1S/C7H8O3/c1-10-6-4-2-3-5(8)7(6)9/h2-4,8-9H,1H3 Copy

  
• IUPAC Standard InChIKey: LPYUENQFPVNPHY-UHFFFAOYSA-N Copy
• CAS Registry Number: 934-00-9
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Pyrocatechol, 3-methoxy-; Pyrogallol 1-methyl ether; Pyrogallol 1-monomethyl ether; 1,2-Dihydroxy-3-methoxybenzene; 2,3-Dihydroxyanisole; 3-Methoxy-1,2-benzenediol; 3-Methoxycatechol; 3-Methoxypyrocatechol; 1-O-Methylpyrogallol; 3-Methoxy-o-hydroquinone; 6-Methoxycatechol; NSC 66525; 3-Methoxy-1,2-benzenediol (3-methoxypyrocatechol); Catechol, 3-methoxy
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• Information on this page:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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Gas phase thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Condensed phase thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.

Reduced pressure boiling point

IR Spectrum

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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

Gas Phase Spectrum

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Additional Data

Mass spectrum (electron ionization)

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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

Spectrum

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Additional Data

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

Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Normal alkane RI, non-polar column, temperature ramp

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes

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

Ribeiro Da Silva, Ribeiro Da Silva, et al., 1986
Ribeiro Da Silva, M.D.M.C.; Ribeiro Da Silva, M.A.V.; Pilcher, G., Enthalpies of combustion of the three trihydroxybenzenes and of 3-methoxycatechol and 4-nitrocatechol, J. Chem. Thermodyn., 1986, 18, 295-300. [all data]

Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc., Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Ré-Poppi and Santiago-Silva, 2005
Ré-Poppi, N.; Santiago-Silva, M., Polycyclic aromatic hydrocarbons and other selected organic compounds in ambient air of Campo Grande City, Brazil, Atmos. Environ., 2005, 39, 16, 2839-2850, https://doi.org/10.1016/j.atmosenv.2004.10.006 . [all data]

Ré-Poppi and Santiago-Silva, 2002
Ré-Poppi, N.; Santiago-Silva, M.R., Identification of polycyclic aromatic hydrocarbons and methoxylated phenols in wood smoke emitted during production of charcoal, Chromatographia, 2002, 55, 7/8, 475-481, https://doi.org/10.1007/BF02492280 . [all data]

Harrison and Priest, 2009
Harrison, B.M.; Priest, F.G., Composition of peaks used in the preparation of malt for Scotch Whisky production - influence of geographical source and extraction depth, J. Agric. Food Chem., 2009, 57, 6, 2385-2391, https://doi.org/10.1021/jf803556y . [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°gas	Enthalpy of formation of gas at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH°	Enthalpy of vaporization at standard conditions

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