High-Purity 5-Benzoyl-4-Hydroxy-2-Methoxybenzenesulfonic Acid (99%+) from United States
High-Purity 5-Benzoyl-4-Hydroxy-2-Methoxybenzenesulfonic Acid (99%+) is a laboratory-grade separate chemically defined organic compound. It contains a ketone group and phenolic hydroxyl, classified under tariff item 2914.50.00 as a ketone-phenol with other oxygen function.
Duty Rate — United States → Canada
0%
Import Tips
• For laboratory use, ensure the product is not classified as a pharmaceutical intermediate under other headings
• Provide the CAS number and purity certificate to expedite CBSA clearance
• If importing for R&D, consider whether a controlled substances permit is needed