Dodecylbenzene Sulfonic Acid (DDBSA) from Mexico
Dodecylbenzene Sulfonic Acid (DDBSA) is a key anionic surfactant used in liquid laundry detergents and industrial cleaners. Its aromatic sulfonic acid structure provides effective emulsification and dirt removal, meeting the criteria for organic surface-active agents in heading 34.02. It is classified here as an anionic surface-active agent other than the sodium salt.
Duty Rate — Mexico → Canada
6.5%
Import Tips
• Verify the product is not a separate chemically defined compound; if it is, it would be excluded from Chapter 34
• Provide technical documentation showing the product meets the surface tension reduction test in Chapter Note 3
• If the product is neutralized to a sodium salt before import, classification may shift to 3402.31.10