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2904.99.35.00/4,4'-Dinitrostilbene-2,2'-disulfonic acid/Canada

4,4'-Dinitrostilbene-2,2'-disulfonic acid from Canada

4,4'-Dinitrostilbene-2,2'-disulfonic acid is a sulfonated and nitrated derivative of the hydrocarbon stilbene, featuring two nitro groups and two sulfonic acid groups. It is classified under HTS 2904.99.35.00 as a specific chemically defined organic compound within the category of sulfonated, nitrated, or nitrosated hydrocarbons. This compound serves primarily as an intermediate in dye synthesis.

Duty Rate — Canada → United States

15.5%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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Import Tips

• Provide detailed chemical analysis and Certificate of Analysis (CoA) confirming purity and identity as 4,4'-Dinitrostilbene-2,2'-disulfonic acid to match HTS 2904.99.35.00 exactly

• Include Safety Data Sheet (SDS) and ensure packaging complies with DOT hazardous materials regulations for nitro and sulfonic compounds

• Verify no halogenation present, as halogenated derivatives may shift classification within 2904