p-Aminoazobenzene-2,4-disulfonic acid, 98% purity
High-purity technical grade p-Aminoazobenzene-2,4-disulfonic acid meets Chapter 29 definition for separate chemically defined azo compounds with sulfonic acid groups under HTS 2927.00.06.00. Primary use as dye coupling component.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 5.8% | +37.5% | 43.3% |
| 🇲🇽Mexico | 5.8% | +10.0% | 15.8% |
| 🇨🇦Canada | 5.8% | +10.0% | 15.8% |
| 🇩🇪Germany | Free | +10.0% | 10% |
| 🇯🇵Japan | Free | +12.5% | 12.5% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If purity <80% or contains formulants
Chemical preparations not meeting 'separate compound' criteria fall under mixtures of Chapter 38
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Batch certificates must specify >95% purity to qualify as 'separate chemically defined compound' vs mixtures
• Label drums with GHS corrosive pictogram and pH <2 warning for sulfonic acid content
• Avoid wooden pallets; use chemical-compatible plastic or steel drums per DOT specifications
Related Products under HTS 2927.00.06.00
p-Aminoazobenzenedisulfonic acid
p-Aminoazobenzenedisulfonic acid is a chemically defined diazo compound featuring an azo (-N=N-) linkage and two sulfonic acid groups, explicitly listed under HTS 2927.00.06.00. It serves as a key intermediate in the synthesis of direct dyes for textiles and paper.
Diazoaminobenzene (1,3-Diphenyltriazene)
Diazoaminobenzene, also known as 1,3-Diphenyltriazene, is a specific diazo compound explicitly named in HTS 2927.00.06.00 featuring the triazene (-NH-N=N-) functional group. Used as a reagent in organic synthesis and photographic chemistry.
Diazoaminobenzene stabilized with 0.1% citric acid
Diazoaminobenzene with stabilizer added per Chapter 29 note 2(f), maintaining classification under HTS 2927.00.06.00 as the stabilizer is solely for preservation/transport. Used in analytical chemistry standards.
1,3-Diphenyltriazene technical grade
Technical grade 1,3-Diphenyltriazene (synonym for diazoaminobenzene) explicitly covered by HTS 2927.00.06.00 as listed diazo compound. Intermediate for azo dye synthesis and radical scavenger applications.