2-Nitrotoluene-5-sulfonic acid
2-Nitrotoluene-5-sulfonic acid is a sulfonated and nitrated derivative of toluene, featuring a nitro group at the ortho position and a sulfonic acid group at the meta position relative to the methyl group. It falls under HTS 2904.99.20.00 as a chemically defined nitrotoluenesulfonic acid, consistent with Chapter 29 notes for sulfonated, nitrated hydrocarbons. This compound is primarily used as an intermediate in 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 formulated as synthetic dye for retail or industrial use
Processed into coloring matter, excluding Chapter 29 per chapter exclusion (g); classified last per note 3.
If imported as mixture with solvents exceeding Chapter 29 solution limits
Solutions beyond safety/transport purposes fall outside Chapter 29 note (e), into mixtures.
If lacks nitro group, only sulfonated toluene derivative
Without nitro functionality, moves to other sulfonated hydrocarbons in same heading group.
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
• Verify chemical purity via Certificate of Analysis (COA) as impurities may affect classification under Chapter 29 note (a)
• Include Safety Data Sheet (SDS) and proper UN hazmat shipping declarations for corrosive liquid handling
• Avoid common pitfall of misclassifying as dye product (HTS 3204) if not chemically defined compound
Related Products under HTS 2904.99.20.00
4-Nitrotoluene-2-sulfonic acid
4-Nitrotoluene-2-sulfonic acid contains a nitro group para to the methyl and sulfonic acid ortho to methyl on the toluene ring, qualifying as a nitrotoluenesulfonic acid under HTS 2904.99.20.00. This sulfonated, nitrated hydrocarbon derivative aligns with Chapter 29 definitions for separate chemically defined compounds. Commonly serves as precursor in azo dye manufacturing.
6-Nitrotoluene-3-sulfonic acid
6-Nitrotoluene-3-sulfonic acid is the ortho-nitrated, meta-sulfonated toluene isomer, a separate chemically defined compound under HTS 2904.99.20.00. Fits Chapter 29 for nitrotoluenesulfonic acids, excluded from dyes or mixtures. Intermediate for acid dyes and optical brighteners.
2,4-Dinitrotoluene-5-sulfonic acid
This dinitro derivative features nitro groups at positions 2 and 4, with sulfonic acid at 5 on toluene, classified under HTS 2904.99.20.00 as nitrotoluenesulfonic acids including compound nitrated derivatives per chapter note. Meets criteria for sulfonated, nitrated hydrocarbons of heading 2904. Used in specialty dye and pharmaceutical synthesis.
Sodium 4-nitrotoluene-2-sulfonate
The sodium salt of 4-nitrotoluene-2-sulfonic acid, classified with the parent acid under HTS 2904.99.20.00 per Chapter 29 note 5(C)(1) for inorganic salts of organic acids. Retains sulfonated/nitrated toluene character without changing heading. Used in water-soluble dye formulations.