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Assay: 99.56% by HPLC
Standard: Enterprise Standard.
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|Other Name||PYROCATECHOL MONOMETHYL ETHER;PYROGUAIAC ACID;O-METHOXYPHENOL;O-METHYLCATECHOL;O-HYDROXYANISOLE;CATECHOL MONOMETHYL ETHER;Gulaiacol;GUAJACOL|
Guaiacol is a naturally occurring organic compound with the formula C6H4(OH)(OCH3), Although it is biosynthesized by a variety of organisms, this yellowish aromatic oil is usually derived from guaiacum or wood creosote. Samples darken upon exposure to air and light. Guaiacol is present in wood smoke, resulting from the pyrolysis of lignin. The compound contributes to the flavor of many substances; e.g., whiskey and roasted coffee.
|CAS No.||90-05-1||Outer Packing||25kg/Drum|
|Production date||8th Jan 2019||Shelf life||7th Jan 2020|
|Standard adopted||Enterprise Standard|
|Items of analysis||Specification||Results|
|Appearance||Colourless to slightly yellow liquid or concretion||Conform|
|Odor||With strong smoky and a slightly medicine aroma||Conform|
|Freezing Point (℃)||≥27.0||27.5|
|Heavy Metal (Pb)||≤0.001||＜0.001|
Guaiacol is a precursor to various flavorants, such as eugenol andvanillin. Its derivatives are used medicinally as an expectorant,antiseptic, and local anesthetic. It also can be used as an indicator in chemical reactions that produce oxygen. When oxygen binds to it, the complex turns yellowish brown and absorbs light maximally at about 470 nm.