</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

4-Sulfobenzophenone

4-Sulfobenzophenone features sulfonic acid group substitution, classifying as sulfonated aromatic ketone derivative per HTS 2914.79.40.00. Applied in water-soluble photoinitiators.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.5%+7.5%13%
🇲🇽Mexico5.5%5.5%
🇨🇦Canada5.5%5.5%
🇩🇪Germany5.5%5.5%
🇯🇵Japan5.5%5.5%

Alternative Classifications

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

2904.10.37.00Higher: 40.5% vs 13%

If hydrocarbon sulfonate without ketone

Parent sulfonic acids classify earlier in Chapter 29.

2833.19.00.00Higher: 35% vs 13%

If alkali metal sulfonate salt

Inorganic salts of organic acids may shift to Chapter 28.

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

Specify free acid vs. sodium salt form; salts follow chapter note 3(C)

Hygroscopic; package with silica gel desiccants

Water solubility testing documentation aids aqueous solution declarations