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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified primarily as organo-sulfur compound
Heading 2930 (earlier in chapter) vs 2934; Chapter Note 3 requires latest numerical order (2934 preferred).
If supported on carrier or in formulation
Rubber accelerator preparations specifically classified in 3812, not pure compounds of Chapter 29.
If other benzothiazole sulfenamides (CBS, MBS, etc.)
Different amine substituent excludes from specific 2934.20.25.00 enumeration.
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Import Tips & Compliance
• CAS 53880-86-7 must appear on all documentation; common misclassification as 2930 organo-sulfur compound
• Melting point 82-86°C specification helps verify identity during CBP examination
• Import as pure chemical only; rubber masterbatch form goes to Chapter 40
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-(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.
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.
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.