Morpholinyl-2-benzothiazole Disulfide MBSS

MBSS is similar to MBS, except it possesses an extra sulfur atom between the two benzothiazyl groups of the molecule. This enables MBSS to be used as a sulfur donor as well as an accelerator. However, just as with MBS, MBSS has also been decreasing 

MBSS is classified by ASTM D4818 as a sulfenamide accelerator. 

Vanderbilt Hangzhou Yuhao Chemical Meryer Chemical (Shanghai) 

MBSS is sometimes used as a primary accelerator by the tire industry, especially if its extra sulfur is needed for vulcanization efficiency. However, MBSS does have an environmental problem from excessive nitrosamine generation during cure, which has restricted its use. 

Other primary accelerators, such as CBS and TBBS, when used with inhibitors and other accelerators can substitute for MBSS. 

---