2-Mercaptobenzothiazole (MBT) Powder
2-Mercaptobenzothiazole is a heterocyclic compound containing a benzothiazole ring system, specifically listed under HTS 2934.20.1500. It is primarily used as an accelerator in rubber vulcanization processes to enhance curing speed and performance.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when pre-mixed with rubber as a vulcanization accelerator compound
Mixtures of rubber accelerators with other additives fall under Chapter 38 prepared rubber accelerators rather than pure compounds
If containing >2% impurities or blended with solvents/stabilizers
Chemical preparations not elsewhere specified in Chapter 38 supersede pure organic compounds when purity threshold not met
If classified primarily by sulfur functionality rather than heterocyclic structure
Organo-sulfur compounds take precedence only if benzothiazole ring not recognized as principal characteristic
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Import Tips & Compliance
• Provide detailed chemical analysis certificates confirming 98%+ purity to avoid misclassification as mixtures under Chapter 38
• Include Safety Data Sheets (SDS) showing proper Hazard Class 6.1 packaging for UN 2942 poison classification
• Verify accelerator end-use documentation to distinguish from pesticide formulations that may require EPA registration
Related Products under HTS 2934.20.15.00
N-(Oxydiethylene)benzothiazole-2-sulfenamide (NOBS) Crystals
NOBS is a delayed-action sulfenamide accelerator containing the specified benzothiazole ring system, explicitly named in HTS 2934.20.1500. It provides scorch safety and fast curing in rubber compounds, especially for thick sections.
2-Mercaptobenzothiazole Industrial Grade 98%
High-purity industrial grade 2-Mercaptobenzothiazole at 98% minimum assay, qualifying as a chemically defined compound under HTS 2934.20.1500. Used in tire manufacturing and rubber belt production for optimal cross-linking.
CBS Benzothiazole Sulfenamide Accelerator
CBS (CZ) is N-Cyclohexyl-2-benzothiazole sulfenamide, chemically related to named NOBS in HTS 2934.20.1500 via benzothiazole structure. Provides excellent processing safety for automotive rubber components.
MBTS Dibenzothiazole Disulfide
MBTS, derived from 2-Mercaptobenzothiazole, contains two benzothiazole rings linked by disulfide bond, qualifying under HTS 2934.20.1500 provisions. Slow-curing accelerator used in EPDM rubber formulations.
NOBS MBS Rubber Accelerator 95% Powder
MBS (MOR) is 2-(Morpholinothio)benzothiazole, a sulfenamide accelerator analogous to named NOBS under HTS 2934.20.1500. Provides balanced cure rate and scorch resistance for conveyor belts.