3370. 2,2′-Dithiobis[benzothiazole]

Nomenclature

CAS number: 120-78-5
MBTS; 2,2′-dibenzothiazyl disulfide; benzothiazyl disulfide; dibenzthiazyl disulfide; mercaptobenzthiazyl ether; Thiofide.
C14H8N2S4; mol wt 332.49.
C 50.57%, H 2.43%, N 8.43%, S 38.58%.

Description and references

Formed by oxidation of 2-mercaptobenzothiazole.

Chemical structure

Properties

Pale yellow needles from benzene. d 1.50. mp 180°; also reported as mp 186°; the commercial product, mp 168° min. Insoluble in water. Solubility at 25° (g/100 ml): in alcohol <0.2; in acetone <0.5; in benzene <0.5; in carbon tetrachloride <0.2 (somewhat more in chloroform); in ether <0.2; in naphtha <0.5.

Use

As accelerator in the rubber industry.