Hydroquinone Monomethyl Ether (MEHQ)
Hydroquinone monomethyl ether (MEHQ) is a monophenol with a methoxy substituent, used as a polymerization inhibitor in acrylic monomers. It is a separate chemically defined organic compound, meeting Chapter 29 Note 1(a), and falls under 'other' monophenols.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags (3)Show detailsHide detailsCFIAAll ProgramsRequiredHCActive Pharmaceutical IngredientsMay be requiredHCOffice of Controlled substancesMay be required
- CFIA
All Programs · Required
CANADIAN FOOD INSPECTION AGENCY: CFIA All Programs requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Within Range 2907190000–2907210000).
- HC
Active Pharmaceutical Ingredients · May be required
May require HC Active Pharmaceutical Ingredients depending on intended use (HC13) and Canadian product category (HC01). Matching criteria: Starts With 2907. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
- HC
Office of Controlled substances · May be required
May require HC Office of Controlled substances depending on intended use (HC01, HC02, HC10) and Canadian product category (HC19, HC20, HC22); or intended use (HC05, HC15, HC28) and Canadian product category (HC19, HC20, HC21, HC22). Matching criteria: Equal To 2907190000; Equal To 2907190000. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the methoxy group is considered an ether function
Ether-phenols are classified in heading 29.09, but note 3 to Chapter 29 would place it in the later heading if both apply.
If the product is an amino-phenol derivative
Amino-phenols are classified in heading 29.22, but this product does not have an amino group.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• MEHQ is often shipped in small quantities; ensure proper labeling as a hazardous chemical
• If used as an inhibitor in monomers, the monomer itself may be classified elsewhere
• Keep the purity certificate to support the classification
Related Products under Tariff item 2907.19.00
2,3-Xylenol
2,3-Xylenol (2,3-dimethylphenol), a vicinal dimethyl monophenol used in specialty polymer synthesis and fragrance intermediates. This chemically defined compound is classified under tariff item 2907.19.00 as an other monophenol.
2,4,6-Trimethylphenol (Mesitol)
2,4,6-Trimethylphenol (mesitol), a trimethyl-substituted monophenol used in pharmaceutical synthesis and polymer stabilizers. Despite the trimethyl substitution, it is a chemically defined monophenol classified under tariff item 2907.19.00.
2,4,6-Tris(dimethylaminomethyl)phenol (Ancamine K54)
2,4,6-Tris(dimethylaminomethyl)phenol (Ancamine K54), a Mannich base monophenol used as an epoxy curing agent. This chemically defined compound is classified under tariff item 2907.19.00 as an other monophenol.
2,4-Xylenol Sodium Salt
The sodium salt of 2,4-xylenol, a water-soluble phenolate used as a chemical intermediate and buffering agent. Per Chapter 29 Note 5(C)(1), inorganic salts of organic compounds are classified with the parent organic compound, thus under tariff item 2907.19.00.
2,6-Di-tert-butyl-4-methylphenol (BHT)
2,6-Di-tert-butyl-4-methylphenol (BHT), a sterically hindered monophenol antioxidant used as a food preservative and stabilizer in plastics. This chemically defined compound is classified under tariff item 2907.19.00.
2,6-Di-tert-Butylphenol
2,6-Di-tert-Butylphenol is a sterically hindered alkylphenol used as an antioxidant stabilizer. It is a chemically defined monophenol with two tert-butyl groups. It is essential in polymers, fuels, and lubricants.