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2933.29.90.00/Imidazole-4-Carboxylic Acid/Canada

Imidazole-4-Carboxylic Acid from Canada

Imidazole-4-carboxylic acid is a key intermediate containing the unfused imidazole ring used in synthesis of pharmaceuticals and agrochemicals. Classified under HTS 2933.29.90.00 as other compounds with unfused imidazole ring structure and nitrogen hetero-atoms only.

Duty Rate — Canada → United States

16.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Provide structure confirmation via HPLC or mass spectrometry to verify unfused imidazole classification

• Include Safety Data Sheet (SDS) detailing handling precautions for corrosive organic acids

Imidazole-4-Carboxylic Acid from Canada — Import Duty Rate | HTS 2933.29.90.00