4-Carbazoleboronic Acid from Japan
4-Carbazoleboronic acid retains the core carbazole heterocyclic structure with a boronic acid substitution. It is used as an intermediate in organic synthesis and is classified under tariff item 2933.99.00 as an organo-inorganic compound.
Duty Rate — Japan → Canada
0%
Import Tips
• Verify the product is not more specifically covered by heading 29.31 for organo-inorganic compounds; if the boron is directly linked to carbon, it may fall under that heading
• Confirm the product is a separate chemically defined organic compound
• Keep technical documentation for CBSA verification