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.
Import Duty Rates by Country of Origin
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
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
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.