Pyrogallol 1,3-dimethyl ether
|Molar mass||154.16 g/mol|
|Appearance||Gray to light brown solid|
|Melting point||50 to 57 °C (122 to 135 °F; 323 to 330 K)|
|Boiling point||261 °C (502 °F; 534 K)|
|Flash point||140 °C (284 °F; 413 K)|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
Syringol is a naturally occurring dimethyl ether of pyrogallol.
Together with guaiacol, syringol and its derivates are characteristic products of pyrolysis of lignin, being derived from the thermal decomposition of the Sinapyl alcohol monomer. As such, syringol is an important component of wood smoke.
In preparation of food by smoking, syringol is the main chemical responsible for the smoky aroma, while guaiacol contributes mainly to taste. Artificial liquid or solid smoke flavorings also contain the chemical, on average composing 13.73% and 13.42% of those products by mass respectively.
Pyrolysis oil, a biofuel derived from woody biomass, can be optimized to yield syringol as a byproduct, potentially replacing demand for petroleum derived phenols. For instance, studies indicate that syringol can serve as a substitute feedstock for phenol formaldehyde resin, a commonly used, water resistant adhesive for plywood.
- 2,6-Dimethoxyphenol at Sigma-Aldrich
- Mrak, E. M., Chichester, C. O., & Schweigert (1984). Advances in Food Research, Volume 29. London: Academic Press, Inc. pp. 129–130. ISBN 9780080567488.
- Dinesh Mohan; Charles U. Pittman Jr.; Philip H. Steele (2006). "Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review". Energy & Fuels 20 (3): 863. doi:10.1021/ef0502397. Retrieved 9 December 2013.
- Bridgwater, A.V.; Effendi A; Gerhauser H; (2008). "Production of renewable phenolic resin by thermochemical conversion of biomass: A review". Renewable and Sustainable Energy Reviews 12 (8). doi:10.1016/j.rser.2007.04.008. Retrieved 9 December 2013.