4-Dimethylaminopyridine (DMAP) (CAS 1122-58-3) from United States
4-Dimethylaminopyridine (DMAP) is a nucleophilic catalyst used in esterification and acylation reactions. It features a pyridine ring with a dimethylamino substitution at position 4. The pyridine ring structure dictates classification under this heading.
Duty Rate — United States → Canada
0%
Import Tips
• Declare DMAP with its CAS number (1122-58-3) for accurate classification
• Ensure the product is not mixed with other compounds that could change classification
• Verify the purity level as it may affect duty assessment