2-Mercaptobenzothiazole (MBT), CAS 149-30-4, is a thiazole-class rubber accelerator and an important intermediate for other accelerators (MBTS, CBS, TBBS). PolyBlueChem supplies MBT to rubber, adhesive, lubricant and mineral-processing customers with per-batch COA and SDS.
Specifications
| Property | Specification |
|---|---|
| Appearance | Off-white to pale-yellow powder or granules |
| Initial melting point | 170.0 deg C min |
| Loss on heating (100 +/- 2 deg C) | 0.30% max |
| Ash (750 +/- 25 deg C) | 0.30% max |
| Residue on 150 um sieve | 0.10% max |
| Purity (titration / HPLC) | 97.0% min |
Basic Information
| CAS number | 149-30-4 |
| Molecular formula | C7H5NS2 |
| Molecular weight | 167.25 g/mol |
| Synonyms | MBT, 2-benzothiazolethiol, 2-benzothiazolinethione |
Applications
- Rubber accelerator – a thiazole accelerator for natural and synthetic rubbers (NR, SBR, BR, NBR), often used with a second accelerator.
- Intermediate – the starting material for MBTS, CBS, TBBS and other benzothiazole accelerators.
- Mineral flotation – a collector for sulphide and oxidised sulphide ores.
- Lubricant additive – antioxidant and extreme-pressure component in lubricants and greases.
Packaging and documentation
- 25 kg PP/PE bags and 1000 kg jumbo bags; palletised for container shipment.
- Per-batch certificate of analysis (COA) and safety data sheet (SDS).
- Keep sealed and dry; store away from oxidising agents.
PolyBlueChem supplies 2-mercaptobenzothiazole (MBT, CAS 149-30-4) against this specification, with COA and SDS per batch and FOB/CIF delivery. Contact us with your tonnage and delivery port for a quotation.




