Tetramethylthiuram monosulfide
CAS 97-74-5
EC 202-605-7
Formula C6H12N2S3
MW 208.37 g/mol
Catalysts & Catalyst Precursors Rubber & TireAgriculture & FeedPlastics & Polymers CatalysisPreservation & BiocideAntioxidant & Stabilizer
Description
Tetramethylthiuram monosulfide (CAS 97-74-5), commonly known as TMTM or UNADS, is an organosulfur compound supplied as a yellow powder. It carries no assigned E-code and is also marketed under trade names including Aceto TMTM, Monothiuram, and Mono-Thiurad.
In rubber manufacturing, TMTM functions as a secondary accelerator, activating sulfur vulcanization to improve crosslink density and heat resistance in tire compounds and technical rubber goods. In agriculture, it acts as a seed treatment fungicide and soil biocide, disrupting fungal enzyme activity. It also serves as an antioxidant stabilizer in polymer processing.
TMTM is available in powder and granular grades, with the granular form reducing dust exposure during handling. It falls under REACH regulation (EC 202-605-7) and is classified under HS code 29303000. Procurement teams should confirm current SDS documentation and regional authorization status before ordering.
In rubber manufacturing, TMTM functions as a secondary accelerator, activating sulfur vulcanization to improve crosslink density and heat resistance in tire compounds and technical rubber goods. In agriculture, it acts as a seed treatment fungicide and soil biocide, disrupting fungal enzyme activity. It also serves as an antioxidant stabilizer in polymer processing.
TMTM is available in powder and granular grades, with the granular form reducing dust exposure during handling. It falls under REACH regulation (EC 202-605-7) and is classified under HS code 29303000. Procurement teams should confirm current SDS documentation and regional authorization status before ordering.
Physical Properties
| Melting Point | 109.5 °C |
| Boiling Point | 260.9±23.0 °C(Predicted) |
| Density | 1.37 g/cm³ @ Temp: 20 °C |
| Flash Point | 156 °C |
| Appearance | yellow powder |
| Color | Yellow |
| Odor | odorless |
| Form | Powder |
| Water Solubility | insoluble |
| Vapor Pressure | 0.002Pa at 25℃ |
| Refractive Index | 1.4825 (estimate) |
| Log P | 1.17 at 20℃ |
Safety & Handling (Learn More)
Warning GHS07 GHS09 GHS08
H
H302H315H317H319H332H341H373H400H410H411H302+H332
P
P203P260P261P264P270P271P272P273P280P317P318P319P321P330P391P405P501P264+P265P301+P317P302+P352P304+P340P332+P317P333+P317P337+P317P362+P364P305+P351+P338
Trade & Regulatory
| HS Code | 29303000 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
dimethylcarbamothioyl N,N-dimethylcarbamodithioateTMTMUNADSAceto TMTMMonothiuramMono-ThiuradUNADS GRANULARMONOTHIURAD(R)
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Raw Materials
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