Molekula
Tetramethylthiuram disulfide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Tetramethylthiuram disulfide (TMTD) is an organic sulfur compound widely used as a vulcanization accelerator in the rubber industry, as well as a fungicide and pesticide. It is also employed in chemical synthesis and as a stabilizer in plastics. This yellow crystalline powder has a CAS number of 137-26-8, a molecular formula of C6H12N2S4, and a molecular weight of 240.43. It should be stored at ambient conditions, with a signal word of Warning indicating moderate hazard. Molekula supplies Tetramethylthiuram disulfide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £28.00 per pack ex VAT · £33.60 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to light gray powder or granular |
| Melting Point | ≥142°C |
| Ash | ≤0.3% |
| Identification | Conforms to reference |
| Loss on Drying | ≤0.5% |
| Assay | 97% min |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 150 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Odour | Characteristic odor |
| Melting Point | 155-156 °C |
| Boiling Point | 129 °C at 20 mmHg |
| Density | 1.3 g/cm³ |
| Water Solubility | 30 mg/L at 25 °C |
| Vapour Pressure | 1.72 × 10⁻⁵ mmHg at 25 °C |
| log P (octanol/water) | 1.73 |
Source: PubChem CID 5455 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 17455879 |
| CAS Number | 137-26-8 |
| IUPAC Name | dimethylcarbamothioylsulfanyl N,N-dimethylcarbamodithioate |
| EC Number | 205-286-2 |
| Molecular Formula | C6H12N2S4 |
| Molecular Weight | 240.43 |
| Exact Mass | 239.9883 |
| SMILES | CN(C)C(=S)SSC(=S)N(C)C |
| InChIKey | KUAZQDVKQLNFPE-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H12N2S4/c1-7(2)5(9)11-12-6(10)8(3)4/h1-4H3 |
| PubChem CID | 5455 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2930306000 |
| Tariff Code | 2930300000 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H332 Harmful if inhaled
- H373 May cause damage to organs through prolonged or repeated exposure
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Arasan
- Fernasan
- Nobecutan
- Normersan
- Pomarsol
- Rezifilm
- thiram
- Thirame
- Thiuram
- TMTD
Frequently asked questions
What is tetramethylthiuram disulfide (TMTD) commonly used for?
TMTD is primarily used as a vulcanization accelerator in rubber manufacturing, as well as a fungicide and in some chemical synthesis processes.
What is the chemical formula and molecular weight of TMTD?
The chemical formula is **C6H12N2S4**, and the molecular weight is **240.43 g/mol**.
How should TMTD be stored?
Store TMTD in a tightly sealed container at **ambient temperature**, away from moisture and incompatible substances.
What grades or purity levels of TMTD does Molekula supply?
Molekula supplies **technical-grade TMTD** (typically ≥98% purity) for industrial applications.
Can Molekula supply TMTD in bulk quantities?
Yes, Molekula can provide TMTD in bulk, with packaging options including drums (25 kg) or custom quantities based on customer needs.
What documentation comes with a TMTD order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a technical datasheet with batch-specific details.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.