Tetramethylthiuram monosulfide

Tetramethylthiuram monosulfide (CAS 97-74-5), also marketed as TMTM or Unads, is an organosulfur accelerator used primarily in rubber vulcanization and crop protection formulations.

Where is Tetramethylthiuram monosulfide used?

• Rubber compounding: primary or secondary accelerator
• Natural and synthetic rubber goods: controlled cure rates in seals, hoses and molded components
• Agricultural formulations: fungicide and seed treatment agent targeting soil-borne pathogens in cereal and vegetable crops
• Polymer stabilization: antioxidant additive in plastic compounds for long-term thermal stability
• In latex systems it contributes to prevulcanization control, giving formulators tighter command over gel formation and final product consistency.

Good to know: Unlike its disulfide counterpart, the monosulfide structure offers a distinct cure profile suited to specific processing requirements.

Commercial specifications

• Purity confirmed by active content assay
• Pre-dispersed masterbatch forms for dust-free handling