2-(4-Amino Phenyl)-6-Methyl Benzothiazole-7-Sulfonic Acid
Sulfonated benzothiazole derivative specifically listed under HTS 2934.20.25.00 containing amino phenyl substitution and sulfonic acid functionality. Used in azo dye coupling and pharmaceutical intermediate applications. Meets Chapter 29 definition for chemically defined heterocyclic compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sodium salt form imported separately
Organic acid salts classified with parent acid per Chapter Note 3(C)(1), but different heading if not specifically enumerated.
If diluted to standard strength for azo dye production
Chapter Note 2(h) specifically excludes azo dye couplers prepared to standard strengths from Chapter 29.
If other non-enumerated benzothiazole sulfonic acids
Different substitution pattern excludes from specific 2934.20.25.00 enumeration.
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Import Tips & Compliance
• Include NMR/HPLC spectra confirming sulfonic acid position and aromatic substitution pattern
• Label as 'technical grade' vs 'USP grade' affects documentation; pharma intermediates require GMP certs
• Sulfonic acid content must be declared; sodium salt form may require reclassification review
Related Products under HTS 2934.20.25.00
2-Amino-5,6-Dichloro Benzothiazole
A chemically defined heterocyclic compound containing a benzothiazole ring system with amino and dichloro substitutions at positions 5 and 6. Classified under HTS 2934.20.25.00 as one of the specifically enumerated benzothiazole derivatives in this subheading. Used primarily as an intermediate in pharmaceutical and dye synthesis.
2-Amino-6-Nitro Benzothiazole
Nitro-substituted benzothiazole specifically enumerated in HTS 2934.20.25.00 with amino group at position 2. Chemically defined compound used as photographic chemical intermediate and in rubber accelerator synthesis. Falls under Chapter 29 heading 2934 for benzothiazole ring systems.
N,N-Dicyclohexyl-2-Benzothiazole Sulfenamide (DCBS)
Vulcanization accelerator specifically named in HTS 2934.20.25.00 containing dicyclohexylamine moiety attached to benzothiazole sulfenamide. Primary use in delayed-action rubber curing systems for tire manufacturing. Qualifies as chemically defined organo-sulfur heterocyclic compound.
2-Amino-5,6-Dichloro Benzothiazole Technical Grade 98%
Technical grade version of specifically enumerated benzothiazole derivative under HTS 2934.20.25.00 with minimum 98% purity. Contains stabilizer for transport but meets Chapter 29 note 2(f) criteria. Used in high-temperature dye synthesis.
2-Amino-6-Nitro Benzothiazole Photographic Grade
High purity grade (>99.5%) of HTS 2934.20.25.00 enumerated compound optimized for silver halide emulsion sensitization. Contains anti-dusting agent per Chapter 29 note 2(g). Remains classified as pure chemical despite end use specification.