2-benzothiazolethiol, CAS No. 149-30-4

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149-30-4

Catalog No. EBD46479

CAS 149-30-4

Name 2-benzothiazolethiol

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Basic Information

Synonyms: 2-benzothiazolethiol MBT SulfurAcceleratorM Benzothiazole-2-thiol 2-MBT Z-MBT 1,3-benzothiazole-2(3H)-thione RubberAcceleratorMBT RubberPharmaceuticalintermediateRefined(M) RubberAcceleratorM 2-Mercaptobenzothiazole ACCELERATORMBT(M) ACCELERATORMBT ACCELERATORM 2-thiocarbamidothiophenol 2-benzothiazolthiol mercapto(2-)benzothiazole 2-Benzothiazolethiol mercaptobenzothiazole

Molecular Formula: C7H5NS2

Molecular Weight: 167.25

MDL Number: MFCD00005781

Categories: Functional Chemicals > Consumer & Industrial Chemicals > Industrial Auxiliaries Synthetic Chemistry > Organic Building Blocks > Sulfides and Thioethers

Product Description:

2-Mercaptobenzothiazole (MBT, CAS 149-30-4) is an organosulfur compound featuring a benzothiazole ring with a thiol (-SH) group at the 2-position. It is a pale yellow to tan crystalline powder with a characteristic odor. Its primary and most significant industrial application is as a vulcanization accelerator in the rubber industry. MBT is a key ingredient in the production of various rubber goods, including tires, hoses, belts, and seals. It functions by accelerating the cross-linking (vulcanization) process between sulfur and rubber polymers, thereby improving the elasticity, durability, and mechanical properties of the final rubber product. It is also used as a corrosion inhibitor in metalworking fluids and greases. Chemically, MBT serves as a versatile heterocyclic building block containing both sulfur and nitrogen atoms. Its structure makes it a precursor for the synthesis of other benzothiazole derivatives used in various applications, including as fungicides and in analytical chemistry.

Physical Properties

Melting Point: 177-181 °C(lit.)

Boiling Point: 305 °C at 760 mmHg

Flash Point: 200 °C

Density: 1.42

Solubility: water: <0.1 g/100 mL at 19 °C

Safety Information

Packing Level: III

Hazard Category: 9

Transport Codes: 3077

Analytical Data

Appearance: beige or light yellow powder with a faint odour