2-Acetylbenzo(b)thiophene from Mexico
2-Acetylbenzo(b)thiophene is a chemically defined aromatic heterocyclic compound with a thiophene ring fused to a benzene ring and an acetyl substituent. It is used as an intermediate in pharmaceutical synthesis and falls under tariff item 2934.99.00 as an 'other heterocyclic compound.' Its structure contains sulfur as the heteroatom, consistent with Chapter 29 organo-sulfur compounds.
Duty Rate — Mexico → Canada
0%
Import Tips
• Provide the CAS number (1095-80-9) and a certificate of analysis confirming purity
• Ensure the product is not dissolved in solvents for specific use, per Chapter 29 Note 1(e)
• Verify the absence of added stabilizers that could affect classification