Isoeugenol (2-Methoxy-4-(1-propenyl)phenol)
Isoeugenol is an unsaturated guaiacol derivative allylbenzene used in perfumery and as vanillin precursor via oxidation. Its ether-phenol structure maintains HTS 2909.50.20.00 classification despite propenyl substitution. Essential import for fragrance synthesis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as other substituted ether-phenol
Propenyl derivatives may fall under residual if not recognized as core guaiacol.
If pre-formulated essential oil base
Perfumery essential oils containing isoeugenol classify in Chapter 33.
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Import Tips & Compliance
• Specify cis/trans isomer ratio; mixed isomers require separate declaration
• Provide oxidation pathway documentation linking to vanillin production
• IFRA compliance certificate required for fragrance chemical imports
Related Products under HTS 2909.50.20.00
Guaiacol (Methoxyphenol)
Guaiacol, chemically 2-methoxyphenol (C7H8O2), is a naturally occurring organic compound found in wood smoke and creosote, used primarily as a precursor in pharmaceutical synthesis and as an expectorant in cough syrups. It falls under HTS 2909.50.20.00 as a chemically defined ether-phenol. This product is imported in pure form for industrial chemical applications.
Guaiacol Carbonate
Guaiacol carbonate is a derivative formed by esterification of guaiacol, used historically as an antitussive agent in respiratory medications. As a chemically defined derivative of guaiacol (ether-phenol), it qualifies under HTS 2909.50.20.00. Imported primarily for pharmaceutical intermediate production.
4-Methylguaiacol (Creosol)
4-Methylguaiacol, also known as creosol (4-methyl-2-methoxyphenol), is a guaiacol derivative obtained from guaiacum resin or wood creosote, used in organic synthesis and as a disinfectant. It is specifically listed under HTS 2909.50.20.00 as a guaiacol derivative ether-phenol. Commonly imported for flavor and fragrance applications.
Guaiacol Glycerol Ether
Guaiacol glycerol ether is a specialized derivative where guaiacol is ether-linked to glycerol, used in pharmaceutical formulations for expectorant properties. Classified under HTS 2909.50.20.00 as it maintains the core guaiacol ether-phenol structure. Imported for synthesis of advanced respiratory therapeutics.
Vanillin (4-Hydroxy-3-methoxybenzaldehyde)
Synthetic vanillin, chemically 4-hydroxy-3-methoxybenzaldehyde, is a guaiacol derivative produced via guaiacol oxidation or lignin processes, widely used as vanilla flavoring. Despite aldehyde function, its guaiacol ether-phenol nature places it under HTS 2909.50.20.00 per chapter numerical order rules. Imported in bulk for food and fragrance industries.
Guaiacyl Acetate
Guaiacyl acetate is the acetyl ester derivative of guaiacol, used as an intermediate in organic synthesis and historical antitussive formulations. As an ester of ether-phenol per chapter note 5(A), it follows guaiacol classification under HTS 2909.50.20.00. Imported for fine chemical manufacturing.