2-Amino-5-chloro-4-ethyl benzenesulfonic acid
This is a specific aromatic monoamine derivative featuring an amino group, chloro substituent, ethyl chain, and sulfonic acid functionality on a benzene ring. It falls under HTS 2921.43.24.00 as one of the explicitly named toluidine derivatives and salts thereof in the aromatic monoamines category of Chapter 29. Primarily used as an intermediate in dye and pharmaceutical synthesis.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as a derivative of o-toluidine rather than specifically named
o-Toluidine derivatives fall under 2921.42, but this code takes precedence per Chapter 29 note for goods fitting multiple headings (last in numerical order).
If containing additional organo-sulfur linkages beyond sulfonic acid
Organo-sulfur compounds with sulfur directly linked to carbon (not just sulfonated) go to heading 2930, excluding sulfonated derivatives.
If for the corresponding sulfonic acid without the amino group
Sulfonic acids lacking nitrogen-functions classify under 2904; presence of amino group moves it to amine-function Chapter 29 headings.
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) to confirm it matches the exact named compound and meets Chapter 29 chemical definition requirements
• Include Safety Data Sheet (SDS) and ensure proper hazardous material labeling under DOT regulations for sulfonic acid compounds during import
• Avoid misclassification by confirming it's not a sulfonated derivative better suited for earlier Chapter 29 headings; consult CBP for rulings
Related Products under HTS 2921.43.24.00
3-(Trifluoromethyl) aniline (m-Aminobenzotrifluoride)
Meta-substituted aniline with trifluoromethyl group, listed under HTS 2921.43.24.00 as an aromatic monoamine derivative related to toluidines. Qualifies per Chapter 29 for chemically defined organic amine compounds. Widely used in pharmaceutical and agrochemical synthesis.
2-Amino-5-chloro-4-ethyl benzenesulfonic acid sodium salt
Sodium salt form of the named aromatic sulfonic acid-amine compound, classified under HTS 2921.43.24.00 per Chapter 29 rules for salts of organic compounds. Remains chemically defined amine derivative; used in water-soluble dye production.
p-Nitro-o-toluidine technical grade
Technical purity (95-98%) version of p-nitro-o-toluidine, still qualifying as chemically defined under Chapter 29 HTS 2921.43.24.00 despite impurities. Explicitly named aromatic monoamine derivative for industrial dye synthesis.
2-Amino-5-chloro-p-toluenesulfonic acid
An aromatic amine compound with amino, chloro, methyl (tolyl), and sulfonic acid groups on a benzene ring, explicitly listed in HTS 2921.43.24.00. Classified here as a toluidine derivative under aromatic monoamines per Chapter 29 notes. Used in manufacturing azo dyes and pigments.
p-Nitro-o-toluidine
Also known as 4-nitro-2-methylaniline, this toluidine derivative features an amino group, nitro substituent, and ortho-methyl on benzene, explicitly named in HTS 2921.43.24.00. Fits Chapter 29 as an aromatic monoamine derivative; nitro group doesn't override per notes. Intermediate for dyes, agrochemicals.