Triazine-based Rubber Accelerator TZ
TZ (2-mercapto-4,6-bis(pentylamino)-s-triazine) functions as a delayed-action vulcanization accelerator for natural and synthetic rubber, improving processing safety. Classified under HTS 2933.69.60.30 as it contains an unfused triazine ring and is principally used in rubber processing, fitting Chapter 29's scope for separate chemically defined compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing organo-sulfur functionality dominant over triazine ring
Organo-sulfur compounds (Chapter 29 note) take precedence if sulfur-carbon linkage defines chemical character over nitrogen heterocycle.
If imported pre-mixed with carbon black or fillers for direct rubber addition
Anti-oxidizing preparations for rubber fall outside pure Chapter 29 compounds when compounded.
If for triazine compounds used as dye intermediates, not rubber processing
Different statistical breakout within same heading based on principal use, not chemical structure.
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Import Tips & Compliance
• Include end-use statements specifying rubber vulcanization to justify 2933.69.60.30 over general triazine codes; CBP often challenges accelerator classifications
• Test for >95% purity to avoid reclassification as mixtures under Chapter 38; declare CAS 59619-57-0 explicitly
Related Products under HTS 2933.69.60.30
2,4,6-Tris(2,4-dihydroxyphenyl)-1,3,5-triazine
This triazine derivative serves as an ultraviolet absorber and antioxidant in rubber compounding, protecting vulcanized rubber from UV degradation and oxidation. It falls under HTS 2933.69.60.30 as a heterocyclic compound with an unfused triazine ring used principally for rubber processing, per Chapter 29 notes limiting coverage to chemically defined organic compounds.
Hexakis(methoxymethyl)melamine Rubber Crosslinker
This methylated melamine derivative acts as a formaldehyde donor and cross-linking agent in rubber curing systems, particularly for low-temperature vulcanization. It qualifies for HTS 2933.69.60.30 as a triazine-ring compound principally employed in rubber processing, adhering to Chapter 29's chemically defined organic compound requirements.
Triazine Disulfide Rubber Vulcanizing Agent
A 1,3,5-triazine derivative with disulfide bridges promotes efficient vulcanization in latex rubber goods like gloves and balloons. HTS 2933.69.60.30 applies as it features an unfused triazine ring used principally for rubber processing, within Chapter 29's heterocyclic nitrogen compound scope.
4,6-Diamino-1,3,5-triazin-2-ol Rubber Antioxidant
This triazine compound provides long-term heat aging protection in conveyor belt rubber formulations. It is classified under HTS 2933.69.60.30 for its unfused triazine ring structure and principal use in rubber processing as a chemically defined organic compound per Chapter 29.
2-Phenyl-4,6-diamino-1,3,5-triazine Processing Aid
Substituted triazine that improves rubber flow and mold release during processing of automotive seals. HTS 2933.69.60.30 covers this as a nitrogen heterocyclic with unfused triazine ring principally for rubber processing.
Triazine Mercaptobenzothiazole Hybrid Accelerator
Hybrid molecule combining triazine and thiazole rings for synergistic rubber acceleration in truck tires. Despite dual heterocycles, classified in HTS 2933.69.60.30 as triazine-dominant for rubber processing.