Captax MBTS Rubber Accelerator
Captax MBTS is the commercial grade 2,2'-dithiobisbenzothiazole used in tire and rubber manufacturing as a delayed-action vulcanization accelerator. Classified under HTS 2934.20.10.00 due to its specific benzothiazole ring structure as a separate chemically defined organic compound. It improves scorch safety in natural and synthetic rubber compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dispersed in oil or supplied as a paste for easier handling
Oil-extended accelerator mixtures are treated as prepared rubber additives under 3812.
If a substituted derivative of other benzothiazoles
Other unfused benzothiazole compounds without the specific dithiobis structure go to 2934.99.
If classified primarily by ether-oxygen function over heterocyclic ring
Chapter notes prioritize oxygen functions in some cases, but benzothiazole specificity prevails here.
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Import Tips & Compliance
• Verify CAS number 120-78-5 on all documentation for customs clearance; obtain REACH compliance if transshipping from EU
• Avoid pitfalls by distinguishing from powdered vs. oiled dispersions which may alter classification
Related Products under HTS 2934.20.10.00
2,2'-Dithiobisbenzothiazole (DMTS)
2,2'-Dithiobisbenzothiazole, also known as DMTS or bis(2-benzothiazolyl) disulfide, is a sulfur-containing heterocyclic compound featuring a benzothiazole ring system. It falls under HTS 2934.20.10.00 as a specific compound containing the benzothiazole ring (whether hydrogenated or not) that is not further fused with other rings. Primarily used as a vulcanization accelerator in rubber production.
NOBS-60 Pre-Dispersed MBTS Accelerator
NOBS-60 is a 60% dispersion of 2,2'-dithiobisbenzothiazole on polymer carrier for even distribution in rubber mixes. Despite dispersion, the active ingredient's benzothiazole structure qualifies it under HTS 2934.20.10.00 as the principal compound. Used in automotive belts and hoses for controlled vulcanization.
Vulcuren MBS Rubber Chemical
Vulcuren MBS is a high-purity 2,2'-dithiobisbenzothiazole variant optimized for low-temperature vulcanization in synthetic rubbers. It matches HTS 2934.20.10.00 exactly as an unfused benzothiazole ring compound used in seals and gaskets. Provides excellent aging resistance in final products.
Benzothiazole Disulfide Powder 98%
Technical grade 98% 2,2'-dithiobisbenzothiazole powder for large-scale rubber processing plants. Classified precisely under HTS 2934.20.10.00 for its chemically defined benzothiazole structure with allowable impurities per chapter notes. Essential for conveyor belt and footwear production.