Molekula
N,N,N,N-Tetramethyl-1,4-phenylenediamine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
N,N,N,N-Tetramethyl-1,4-phenylenediamine (TMPD) is a diamine compound widely used as a redox indicator and analytical reagent in chemical synthesis, microbiological oxidase testing, and electrochemical research. It appears as a reddish-brown crystalline solid with high purity requirements for industrial applications. This chemical has a CAS number of 100-22-1, molecular formula C10H16N2, and a molecular weight of 164.25 g/mol. It is stable at ambient storage conditions but requires careful handling due to its warning-level hazards.
Molekula supplies N,N,N,N-Tetramethyl-1,4-phenylenediamine at >98.0% purity in 5 g packs, from $58.70 excl. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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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5 g — $58.70 per pack
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 | Purple to brown crystalline powder |
| Melting Point | 47°C - 53°C |
| Purity | >98.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 110 °C |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Boiling Point | 260 °C at 760 mmHg |
| Vapour Pressure | 0.07 mmHg |
Source: PubChem CID 7490 (CAMEO Chemicals, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 18154918 |
| CAS Number | 100-22-1 |
| IUPAC Name | 1-N,1-N,4-N,4-N-tetramethylbenzene-1,4-diamine |
| EC Number | 202-831-6 |
| Molecular Formula | C10H16N2 |
| Molecular Weight | 164.25 |
| Exact Mass | 164.1313 |
| SMILES | CN(C)C1=CC=C(C=C1)N(C)C |
| InChIKey | CJAOGUFAAWZWNI-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H16N2/c1-11(2)9-5-7-10(8-6-9)12(3)4/h5-8H,1-4H3 |
| PubChem CID | 7490 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2921.51.50.00 |
| Tariff Code | 2921519000 |
Safety & GHS
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Toxic
GHS06
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Health Hazard
GHS07
Hazard statements
- H300 Fatal if swallowed
- H312 Harmful in contact with skin
- H332 Harmful if inhaled
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- 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
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- N,N,N',N'-Tetramethyl-1,4-Benzenediamine
- N,N,N',N'-TETRAMETHYL-P-PHENYLENEDIAMINE
- p-Bis(dimethylamino)benzene
- p-Phenylenediamine, N,N,N',N'-tetramethyl-
- Reagents, Wurster's
- Tetramethyl-p-phenylenediamine
- TL 85
- TMPD (amine)
- TMPPD
- Wurster's reagent
Frequently asked questions
What is N,N,N,N-Tetramethyl-1,4-phenylenediamine primarily used for?
It is commonly used as a dye precursor, and as a redox indicator and electron donor, notably as the reagent in the microbiological oxidase test and in electrochemical and biochemical research.
What is the chemical formula and molecular weight of this compound?
The chemical formula is C10H16N2, and the molecular weight is 164.25 g/mol.
How should this chemical be stored?
Store in a tightly sealed container at ambient temperature, away from moisture, heat, and incompatible substances.
What grades or purities are available for this product?
We supply this compound at a purity of >98.0%.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk quantities (typically ≥1 kg) upon request, subject to availability and compliance with safety regulations.
What documentation is provided with an order of this chemical?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing slip with batch details.
Where can I buy N,N,N,N-Tetramethyl-1,4-phenylenediamine?
Directly from Molekula, which lists N,N,N,N-Tetramethyl-1,4-phenylenediamine in 5 g packs from $58.70 excl. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is N,N,N,N-Tetramethyl-1,4-phenylenediamine dangerous goods for shipping?
Yes. N,N,N,N-Tetramethyl-1,4-phenylenediamine ships as dangerous goods: UN2811, class 6.1, packing group II.
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.