1,3,6-1,3,7-NTS Acid for Acid Dyes from Germany
A mixture of naphthalenetrisulfonic acid isomers (1,3,6 and 1,3,7) used as a diazo component in acid dye synthesis. This product contains only sulpho groups as functional derivatives of hydrocarbons, falling under tariff item 2904.10.00.
Duty Rate — Germany → Canada
0%
Import Tips
• Ensure the product is clearly labelled as a mixture of isomers for customs classification
• Provide a certificate of analysis to confirm the sulpho group content
• Verify if the product requires a permit under the Chemicals Management Plan