Molekula
N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride
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
N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride is a synthetic organic compound widely used as a redox indicator, as the reagent in the bacterial oxidase test (where it is oxidized to the coloured radical cation Wurster's blue), and as an electron donor or mediator in biochemistry. It is also employed in analytical chemistry for detecting peroxides and in organic synthesis as a reducing agent. CAS 637-01-4, molecular formula C10H18Cl2N2, molecular weight 237.16932. Store at ambient temperatures. Signal word: Warning. Molekula supplies N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride 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.
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25 g — £106.70 per pack ex VAT · £128.04 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | White/ off white/ grey powder |
| Melting Point | 220 - 230°C |
| Identification | Conforms to reference |
| Loss on Drying | ≤ 2.0% |
| Assay (HPLC) | ≥ 98.0% |
| Water (KF) | ≤ 2.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 34893713 |
| CAS Number | 637-01-4 |
| IUPAC Name | 1-N,1-N,4-N,4-N-tetramethylbenzene-1,4-diamine;dihydrochloride |
| EC Number | 211-274-8 |
| Molecular Formula | C10H18Cl2N2 |
| Molecular Weight | 237.16932 |
| Exact Mass | 236.0847 |
| SMILES | CN(C)C1=CC=C(C=C1)N(C)C.Cl.Cl |
| InChIKey | FBHKTSXMTASXFJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H16N2.2ClH/c1-11(2)9-5-7-10(8-6-9)12(3)4;;/h5-8H,1-4H3;2*1H |
| PubChem CID | 71561 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2921.51.5000 |
| Tariff Code | 2921519000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P271 Use only outdoors or in a well-ventilated area
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- 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.
Synonyms
- 1,4-Benzenediamine, N,N,N',N'-tetramethyl-, dihydrochloride
- 1,4-Benzenediamine, N1,N1,N4,N4-tetramethyl-, hydrochloride (1:2)
- 1,4-Bis(dimethylamino)benzene dihydrochloride
- N,N,N',N'-TETRAMETHYL-1,4-BENZENEDIAMINE DIHYDROCHLORIDE
- N,N,N',N'-Tetramethyl-1,4-phenylenediamine Dihydrochloride
- N,N,N',N'Tetramethylparaphenylenediamine dihydrochloride
- pPhenylenediamine, N,N,N',N'tetramethyl, dihydrochloride
- TETRAMETHYL-1,4-PHENYLENEDIAMINE DIHYDROCHLORIDE
- tetramethyl-p-phenylenediamine dihydrochloride
- Wurster's reagent dihydrochloride
Frequently asked questions
What is N,N,N',N'-Tetramethyl-p-phenylenediamine dihydrochloride (CAS 637-01-4) commonly used for?
It is primarily used as a redox reagent in the oxidase test for detecting cytochrome c oxidase activity in bacteria, where it forms Wurster's blue, a stabilizer in organic synthesis, and as a reagent in chemical research, particularly in radical reactions.
What is the molecular formula and molecular weight of this compound?
The molecular formula is C10H18Cl2N2, and the molecular weight is 237.16932 g/mol.
How should this chemical be stored?
Store in a tightly sealed container at ambient temperature, away from moisture, strong oxidizing agents, and direct sunlight.
What purity grades are available for this product?
Molekula supplies this compound in analytical standard and technical grades—please specify your required purity when ordering.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk packaging options for this compound—contact our sales team for minimum order quantities and pricing.
What documentation comes with an order of this chemical?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
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.