How is guaiacol made?
Guaiacol is produced by methylation of o-catechol, for example using potash and dimethyl sulfate: C6H4(OH)2 + (CH3O)2SO2 → C6H4(OH)(OCH3) + HO(CH3O)SO.
How do you dispose of guaiacol?
This material can only be disposed properly by a licensed hazardous waste disposal firm.
Where is guaiacol found?
Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. Guaiacol is also present in wood smoke, as a product of pyrolysis of lignin. Guaiacol has been found in the urine of patients with neuroblastoma and pheochromocytoma.
What is chemical formula of guaiacol?
C7H8O2
Guaiacol/Formula
What is guaiacol solution?
Guaiacol is an agent thought to have disinfectant properties and used as an expectorant. Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. Guaiacol has been found in the urine of patients with neuroblastoma and pheochromocytoma.
What does guaiacol smell like?
Guaiacol and its derivatives are commonly found in nature and are known for their characteristic smoky, clove-like and vanilla-like smells. All compounds elicited characteristic smoky/smoked ham-like, vanilla-like/sweet and/or clove-like smell impressions.
Is guaiacol water soluble?
One gram of guaiacol dissolves in 60-70 ml of water or 1 g of glycerol. It is miscible with alcohol, chloroform, ether, oils, glacial acetic acid, and slightly soluble in petrolium ether.
How do you make guaiacol solution?
Preparation Instructions One gram of guaiacol dissolves in 60-70 ml of water or 1 g of glycerol. It is miscible with alcohol, chloroform, ether, oils, glacial acetic acid, and slightly soluble in petrolium ether.
What is a guaiacol used for?
Guaiacol is used in traditional dental pulp sedation, and has the property of inducing cell proliferation; guaiacol is a potent scavenger of reactive oxygen radicals and its radical scavenging activity may be associated with its effect on cell proliferation.
Is guaiacol an alcohol?
Our simulations revealed that guaiacol is present at the air-liquid interface at ethanol concentrations that correspond to the alcohol content of bottled or diluted whiskies. Because the drink is consumed at the interface first, our findings help to understand why adding water to whisky helps to enhance its taste.
Is guaiacol a substrate or product?
Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. Guaiacol is readily oxidized by the heme iron of peroxidases including the peroxidase of cyclooxygenase (COX) enzymes. It can therefore serve as a reducing co-substrate for COX reactions.
Is guaiacol a substrate?
With guaiacol as substrate, acidic pH optima have often been reported for the apoplastic peroxidases of several plant species (Hendriks et al., 1991; Melo et al., 1996; Nair and Showalter, 1996).
How can guaiacol be prepared in the laboratory?
Laboratory methods. Guaiacol can be prepared by diverse routes in the laboratory. 2-Aminoanisole, derived in two steps from anisole, can be hydrolyzed via its diazonium derivative. Guaiacol can be synthesized by the di methylation of catechol followed by selective mono- demethylation.
How long can you store 240mg guaiacol in water?
Dissolve 240mg guaiacol in water and make up to 100mL. It can be stored frozen for many months. » Hydrogen peroxide solution (0.042% = 12.3mM). Dilute 0.14mL of 30% H 2 O 2 to 100 mL with water. The extinction of this solution should be 0.485 at 240nm.
What is the rate of formation of guaiacol?
The rate of formation of guaiacol dehydrogenation product is a measure of the POD activity and can be assayed spectrophotometrically at 436nm. Dissolve 240mg guaiacol in water and make up to 100mL. It can be stored frozen for many months. » Hydrogen peroxide solution (0.042% = 12.3mM).
What is the HDO of guaiacol 2 methoxyphenol?
The HDO of guaiacol (GUA, 2-methoxyphenol), a typical model compound for bio-oils formed by pyrolysis of lignocellulosic biomass, was tested with novel hydroprocessing catalysts derived from supported transition metal phosphides: Ni2 P/SiO 2, Fe 2 P/SiO 2, MoP/SiO 2, Co 2 P/SiO 2, and WP/SiO 2 (177).