o-Aminobenzenesulfonic Acid (Orthanilic Acid)
Orthanilic acid is a chemically defined aromatic monoamine derivative with both amino and sulfonic acid groups on a benzene ring, explicitly listed under HTS 2921.42.18.00. It serves as a key intermediate in dye synthesis and pharmaceutical production. This classification applies due to its specific structure as an aniline derivative and salt thereof.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not explicitly listed in 2921.42.18.00
Other aniline derivatives and salts fall under this residual provision within the same subheading.
If considered an organo-sulfur compound dominant over amine function
Organo-sulfur compounds with sulfur directly linked to carbon classified later in Chapter 29 per note 3.
If imported as synthetic dye intermediate prepared for specific dye use
Excluded from Chapter 29 if qualifying as synthetic organic coloring matter per chapter note 2(g).
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Import Tips & Compliance
• Provide Certificate of Analysis (CoA) confirming chemical purity and identity to avoid misclassification
• Ensure SDS includes GHS labeling for hazardous transport; verify DOT/UN proper shipping name
• Declare exact CAS number (582-35-4) on entry to match HTS description precisely
Related Products under HTS 2921.42.18.00
2,4-Dichloroaniline
2,4-Dichloroaniline is a halogenated aromatic monoamine explicitly named in HTS 2921.42.18.00, featuring two chlorine atoms on the aniline benzene ring. Used primarily in herbicide and dye manufacturing. Falls under this code as a derivative of aniline per Chapter 29 heading 2921.
p-Fluoroaniline
p-Fluoroaniline (4-fluoroaniline) is a fluorinated aniline derivative explicitly included in HTS 2921.42.18.00. Essential intermediate for pharmaceuticals like fluoroquinolone antibiotics and agrochemicals. Classified here as an aromatic monoamine per Chapter 29 provisions.
m-Nitroaniline
m-Nitroaniline (3-nitroaniline) is a nitrated aromatic monoamine specifically listed under HTS 2921.42.18.00. Widely used in azo dye production and as a corrosion inhibitor. Qualifies as an aniline derivative per Chapter 29 heading 2921.
N,N-Diethylmetanilic Acid
N,N-Diethylmetanilic acid is a quaternary aniline derivative with both diethylamino and sulfonic acid groups, explicitly named in HTS 2921.42.18.00. Used in specialty dye and surfactant synthesis. Classified as aromatic monoamine derivative per Chapter 29.
2-Chloro-5-nitroaniline
2-Chloro-5-nitroaniline features both halogen and nitro substitution on aniline, explicitly listed in HTS 2921.42.18.00. Critical intermediate for disperse dyes and pharmaceuticals. Meets Chapter 29 criteria for aromatic monoamine derivatives.
4-Chloro-3-nitroaniline
4-Chloro-3-nitroaniline is a dichloro-nitro substituted aniline explicitly covered by HTS 2921.42.18.00. Used in hair dye formulations and agrochemical synthesis. Properly classified as aniline derivative in Chapter 29.