Tetramethylthiuram Monosulfide (TMTM)
Tetramethylthiuram monosulfide (TMTM) serves as a delayed-action accelerator in rubber compounding, particularly for thick articles. It is classified in HTS 2930.30.60.00 as an 'other' thiuram sulfide under organo-sulfur compounds, containing the required direct sulfur-carbon linkages. This product is handled as a high-purity chemical intermediate.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied pre-mixed with other rubber chemicals
Prepared rubber accelerators containing this compound are classified in 3812 rather than as pure organic compounds of Chapter 29.
If considered an ester of thiocarbamic acid rather than thiuram sulfide
Certain thiocarbamate derivatives may fall under oxygen-function nitrogen compounds if the sulfur linkage doesn't dominate classification.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include structural formula verification in documentation to prove thiuram classification; ensure no metal coordination that would shift to heading 2942; store in original industrial packaging to avoid retail classification
Related Products under HTS 2930.30.60.00
Tetramethylthiuram Disulfide (TMTD)
Tetramethylthiuram disulfide, commonly known as TMTD, is a thiuram disulfide used primarily as an accelerator in rubber vulcanization processes. It falls under HTS 2930.30.60.00 as it is a thiuram disulfide compound containing sulfur directly linked to carbon atoms, classified as an organo-sulfur compound per Chapter 29 notes. This chemical is supplied as a pure, separate organic compound without additives that would alter its classification.
Tetraethylthiuram Disulfide (TETD)
Tetraethylthiuram disulfide (TETD) is a thiuram tetrasulfide derivative used as a vulcanization accelerator in the tire and rubber industries. Classified under HTS 2930.30.60.00 as 'other' thiuram mono-, di-, or tetrasulfides, it qualifies as an organo-sulfur compound with sulfur directly bonded to carbon. It is typically imported as a technical-grade powder meeting chemical purity standards.
Tributylthiuram Tetrasulfide (TBzTD)
Tributylthiuram tetrasulfide (TBzTD) is a specialty thiuram tetrasulfide accelerator offering safe processing for low-sulfur rubber compounds. Under HTS 2930.30.60.00, it qualifies as 'other' thiuram sulfides within organo-sulfur compounds due to its molecular structure with multiple sulfur atoms linked to carbon. It is imported as a distinct chemical substance for industrial synthesis.
Thiuram E (Tetramethylthiuram Tetrasulfide)
Thiuram E, or tetramethylthiuram tetrasulfide, functions as an ultra-accelerator in natural rubber vulcanization. Classified under HTS 2930.30.60.00 as other thiuram sulfides, it meets Chapter 29 criteria for organo-sulfur compounds with direct C-S bonds. This is supplied in pure form for chemical processing applications.