Technical Grade 4-Aminoazobenzene-2,4-disulfonate Sodium
Technical grade (>92% purity) monosodium salt of the named disulfonic acid azo-compound, containing minor stabilizers per Chapter 29 note (f). Remains under HTS 2927.00.03.00 as the principal chemically defined organic compound with impurities not altering classification. Standard for batch dye synthesis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If azo-compounds not elsewhere specified with different functional groups
Specific named compound in .03.00 takes precedence; residuals cover others per numerical order note.
If containing additional sugar ethers/esters
Chapter note (c) shifts certain modified organics to 2940-2942; pure azo stays in 2927.
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
• Disclose stabilizer composition (anticaking agents allowed); excess additives risk 3824 reclassification
• Use NA 1759 UN number for transport if dust hazard; align shipping papers with chemical identity
Related Products under HTS 2927.00.03.00
Monosodium 4-Aminoazobenzene-2,4-disulfonate
This is the monosodium salt of 4-aminoazobenzenedisulfonic acid, a chemically defined diazo compound with an azo (-N=N-) linkage and sulfonic acid groups. It falls under HTS 2927.00.03.00 as a specific azo-compound listed in the tariff schedule for separate chemically defined organic compounds. Primarily used as an intermediate in dye synthesis.
Sodium Salt of 4-Aminoazobenzene Disulfonate (CAS 20592-48-5)
Commercially available as CAS 20592-48-5, this monosodium salt features the precise structure of 4-aminoazobenzenedisulfonic acid with one sodium cation. HTS 2927.00.03.00 explicitly names this compound as a diazo-/azo- compound within Chapter 29's scope for pure organic chemicals. Used in coupling reactions for disperse dye production.
4-Aminoazobenzene-2,4-disulfonic Acid Monosodium Salt (Dye Intermediate)
Pure monosodium salt form of the disulfonic acid derivative of 4-aminoazobenzene, a diazo compound used in azo dye manufacturing. Classified under HTS 2927.00.03.00 for its specific chemical structure as a named separate organic compound per Chapter 29 note (a). Supplied as technical grade powder for industrial synthesis.