2-Acetylbenzo(b)thiophene from United States
2-Acetylbenzo(b)thiophene, a specific aromatic heterocyclic compound with a thiophene ring fused to benzene. This chemically defined compound is used as an intermediate in pharmaceutical synthesis.
Duty Rate — United States → Canada
0%
Import Tips
• This compound is a separate chemically defined product per Chapter 29 Note 1
• Provide the CAS number and structural formula for customs
• Verify if the product is controlled as a drug precursor