Syringol

Syringol[1]
Syringol
Names
Preferred IUPAC name
2,6-Dimethoxyphenol
Other names
Syringol
2-Hydroxy-1,3-dimethoxybenzene
Pyrogallol 1,3-dimethyl ether
Identifiers
3D model (JSmol)
1526871
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.001.856 Edit this at Wikidata
EC Number
  • 202-041-1
UNII
  • InChI=1S/C8H10O3/c1-10-6-4-3-5-7(11-2)8(6)9/h3-5,9H,1-2H3 checkY
    Key: KLIDCXVFHGNTTM-UHFFFAOYSA-N checkY
  • InChI=1/C8H10O3/c1-10-6-4-3-5-7(11-2)8(6)9/h3-5,9H,1-2H3
    Key: KLIDCXVFHGNTTM-UHFFFAOYAG
  • O(c1cccc(OC)c1O)C
Properties
C8H10O3
Molar mass 154.16 g/mol
Appearance Gray to light brown solid
Density 1.15857 g/cm3 (60 °C) [2]
Melting point 50 to 57 °C (122 to 135 °F; 323 to 330 K)
Boiling point 262 °C (504 °F; 535 K)[2]
Slightly soluble
Vapor pressure 15.8 Pa (60 °C) [2]
Hazards[1]
Flash point 140 °C (284 °F; 413 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Syringol is the organic compound with the formula HO(CH3O)2C6H3. The molecule is a phenol, with methoxy groups in the flanking (2 and 6) positions. It is the symmetrically dimethylated derivative of pyrogallol. It is a colorless solid, although typical samples are brown owing to air-oxidized impurities. Together with guaiacol, syringol and its derivatives are produced by the pyrolysis of lignin. Specifically, syringol is derived from the thermal decomposition of the sinapyl alcohol component. As such, syringol is an important component of wood smoke.

  1. ^ a b 2,6-Dimethoxyphenol at Sigma-Aldrich
  2. ^ a b c Baird, Zachariah Steven; Uusi-Kyyny, Petri; Pokki, Juha-Pekka; Pedegert, Emilie; Alopaeus, Ville (6 Nov 2019). "Vapor Pressures, Densities, and PC-SAFT Parameters for 11 Bio-compounds". International Journal of Thermophysics. 40 (11): 102. Bibcode:2019IJT....40..102B. doi:10.1007/s10765-019-2570-9.