Benzenesulfonic Acid from Mexico
Benzenesulfonic acid is the simplest aromatic sulfonic acid, produced by direct sulfonation of benzene. It is a separate chemically defined organic compound with a sulphonic group directly linked to a carbon atom of the benzene ring, falling squarely within heading 2904 as a sulphonated derivative of a hydrocarbon.
Duty Rate — Mexico → Canada
0%
Import Tips
• Classify benzenesulfonic acid under 2904.99.00 as a sulphonated derivative of a hydrocarbon; note that heading 2904 covers sulphonated derivatives whether or not halogenated
• Provide the CAS number and purity certificate to facilitate CBSA clearance
• If the product is diluted with water, verify it meets Chapter 29 Note 1(d) for classification in this chapter