Bulk Price High Quality Guaiacol CAS 90-05-1 CATECHOL MONOMETHYL ETHE

Guaiacol 

What is Guaiacol ?   

Guaiacin is a naturally occurring organic compound, chemically known as o-methoxphenol, initially isolated from guaiac resin. Its molecular structure consists of a benzene ring, hydroxyl groups, and a methox group; this unique combination gives it both the antibacterial properties of phenols and the volatility of ethes. Modern industrial production primarily involves synthesis through lignin hydrolysis or catechol methylation. The finished product is a colorless to pale yellow oily liquid with a distinctive smoky aroma and pungent taste. As an important fine chemical intermediate, it holds an irreplaceable position in the pharmaceutical, food, and fragrance industries.

Feature

Expectorant Effect: By stimulating the vagus nerve endings in the gastric mucosa, it reflexively promotes the secretion of bronchial glands, diluting sputum to one-third of its original viscosity. Clinical data show that oral administration of 200mg guaiacol glycerol ethe increases sputum volume in patients with chronic bronchitis by 2.8 times.

Antibacterial and Antiseptic Effects: Its phenolic hydroxyl groups can disrupt the permeability of microbial cell membranes, exhibiting an inhibition rate of up to 99.2% against Gram-positive bacteria. At pH 5.5, a concentration of 0.5% can completely inhibit the growth of Aspergillus niger hyphae.

Antioxidant Synergistic Effects: As a hydrogen donor, it blocks the lipid peroxidation chain reaction. When used in combination with BHT, it can extend the shelf life of edible oils by 3 times and reduce the peroxide value by 67%.

Applications

Pharmaceutical Preparations

As a core ingredient in expectorants, it often exists in compound cold preparations in the form of guaiacol glycerol ethe, increasing the airway mucus clearance rate by 42%. In dentistry, it is used as a root canal disinfectant, with a clearance effect against Enterococcus faecalis 1.8 times that of sodium hypochlorite.

Food Industry
As a smoky flavoring agent used in meat processing, imparting a typical smoky aroma to the product. In the flavoring industry, it serves as a precursor, synthesizing vanillin through condensation reactions, with global annual consumption exceeding tens of thousands of tons.

Fine Chemicals
Used in the synthesis of eugenol and isoeugenol in synthetic fragrances, it is a key component of daily chemical fragrances. As an intermediate in pesticide synthesis, it participates in the synthesis of pyrethroid insecticides, and its derivatives possess both contact and fumigation efficacy.

Scientific Research
In biochemical experiments, it serves as a substrate for tyrosinase, used to detect enzyme activity; in histology, it is used as a staining sensitizer, increasing the contrast of section staining by 35%.

For some products that require special packaging during transportation, we will carry out more delicate packaging. For example, retinal needs to be stored at -20 °C, so we choose cold chain transportation during transportation; deoxyarbutin will change color during transportation, so we will Vacuum packing of deoxyarbutin