rubber accelerator mbts(dm) chemical name: dibenzothiazole disulfide synonyms: dm,mbts molecular formula: c14h8n2s4 molecular weight: 332.50 cas no.: 120-78-5 appearance grayish white or light yellow powder melting point c min 165.0 ash %max 0.30 heating loss % max 0.40 residue(150um)% max 0.10 application is an accelerator of nr and sr. it ahs level and middle cure rate and higher vulcanization temperature. it operates safely, dispees easily and does not contaminate. it is aging resistant, mainly used in manufacture of tires,rubber tubes,rubber shoes,rubber cloth and other technical rubber products. accelerator mbts works as plasticizer and delayed action activator in polychoroprene.