2934.99.05.00/5-Amino-3-phenyl-1,2,4-thiadiazole/Canada

5-Amino-3-phenyl-1,2,4-thiadiazole from Canada

5-Amino-3-phenyl-1,2,4-thiadiazole is a specific aromatic heterocyclic compound containing a thiadiazole ring with an amino group and phenyl substituent. It falls under HTS 2934.99.05.00 as one of the explicitly named 'other heterocyclic compounds' that are aromatic or modified aromatic. This chemical is primarily used as an intermediate in pharmaceutical synthesis and agrochemical production.

Duty Rate — Canada → United States

110%

Rate breakdown

9903.04.6094.2%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter

9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Provide detailed chemical analysis certificates confirming purity and structure to verify classification under the specific named compound

• Ensure SDS (Safety Data Sheets) and proper hazard labeling for transport as this is a reactive heterocyclic amine

• Avoid misclassification as a general thiadiazole by including CAS number (16182-06-4) on commercial invoices