tert-Butyl Peroxybenzoate

tert-Butyl peroxybenzoate is an organic peroxide derived from benzoic acid, used as a catalyst in polymerization reactions for resins, coatings, and rubber curing. Classified under HTS 2916.39.03.00 due to its specific listing as a peroxyacid derivative of an aromatic monocarboxylic acid. Ships as a pale yellow liquid requiring temperature-controlled transport below 30°C.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+35.0%41.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2915.90.50Lower: 28.8% vs 41.5%

If supplied as saturated peroxyacid derivative

Peroxides of acyclic/saturated acids classify in preceding heading 2915, not aromatic 2916.

3815.90.50.00Lower: 40% vs 41.5%

If when pre-formulated as supported catalyst on inert carrier

2909.60.20.00Lower: 40.5% vs 41.5%

If for alcohol peroxides without carboxylic acid functionality

Pure alcohol-derived peroxides classify by alcohol parent structure in heading 2909.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Mandatory DOT/UN hazmat declaration (Class 5.2 organic peroxide) with proper stabilization certification

Temperature data loggers required for shipments; deviations can lead to CBP holds and peroxide decomposition risks

Confirm active oxygen content (AO%) matches specification to avoid reclassification as diluted preparation