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Antioxidant 552 (3,9-Dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane 3,9-dioxide) from Japan

Antioxidant 552 is the commercial grade of 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane 3,9-dioxide, a non-halogenated organo-phosphorus stabilizer used in polymers. Even as a commercial product, it is the same chemically defined compound and is classified under tariff item 2931.48.00.

Duty Rate — Japan → Canada

0%

Import Tips

• Provide the commercial name and the chemical name to the CBSA to avoid misclassification

• Confirm that any additives (e.g

• anti-caking agents) do not render the product suitable for a specific use, which could affect classification

• Check if the product is subject to any Canadian chemical control lists