Guaiacol

Guaiacol (/ˈɡwaɪəkɒl/) is an organic compound with the formula C6H4(OH)(OCH3). It is a phenolic compound containing a methoxy functional group. Guaiacol appears as a viscous colorless oil, although aged or impure samples are often yellowish. It occurs widely in nature and is a common product of the pyrolysis of wood.

Guaiacol
Names
Preferred IUPAC name
2-Methoxyphenol
Other names
o-Methoxyphenol
O-Methylcatechol
2-Hydroxyanisole
Pyroguaiac acid
Pyrocatechol monomethyl ether
1-hydroxy-2-methoxybenzene
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.001.786
KEGG
PubChem CID
UNII
  • InChI=1S/C7H8O2/c1-9-7-5-3-2-4-6(7)8/h2-5,8H,1H3 Y
    Key: LHGVFZTZFXWLCP-UHFFFAOYSA-N Y
  • InChI=1/C7H8O2/c1-9-7-5-3-2-4-6(7)8/h2-5,8H,1H3
    Key: LHGVFZTZFXWLCP-UHFFFAOYAI
SMILES
  • COc1ccccc1O
Properties
C7H8O2
Molar mass 124.139 g·mol−1
Appearance colorless oil or crystalline solid
Density 1.112 g/cm3, liquid
1.129 g/cm3, crystals
Melting point 26–29 °C (79–84 °F; 299–302 K)
Boiling point 204–206 °C (399–403 °F; 477–479 K)
23.3 g/L at 25 °C
Related compounds
Related methoxyphenols
 Mequinol
3-Methoxyphenol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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