Molekula
3,3'-Diaminobenzidine tetrahydrochloride hydrate
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
3,3'-Diaminobenzidine tetrahydrochloride hydrate is a highly sensitive chemical reagent primarily used in analytical chemistry for enzyme-linked immunosorbent assays (ELISA) and as a chromogenic substrate in biochemical research. It is oxidized by horseradish peroxidase in the presence of hydrogen peroxide to produce an insoluble brown precipitate, aiding in detection and quantification of target analytes. This product has a CAS number of 868272-85-9, a molecular formula of (NH2)2C6H3C6H3(NH2)2·4HCl·xH2O, and a molecular weight of 360.11. It must be stored at -15 to -20°C and carries a Danger signal word due to its hazardous nature. Molekula supplies 3,3'-Diaminobenzidine tetrahydrochloride hydrate 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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5 g — $97.60 per pack
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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 red or purple powder |
| Water | 7.0-12.0% |
| Purity (HPLC) | ≥ 98.0% |
| Storage Temperature | -10 to -30°C |
| Identification (IR) | Conforms to Reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90026651 |
| CAS Number | 868272-85-9 |
| IUPAC Name | 4-(3,4-diaminophenyl)benzene-1,2-diamine;hydrate;tetrahydrochloride |
| Molecular Formula | (NH2)2C6H3C6H3(NH2)2·4HCl·xH2O |
| Molecular Weight | 360.11 |
| Exact Mass | 378.0362 |
| SMILES | C1=CC(=C(C=C1C2=CC(=C(C=C2)N)N)N)N.O.Cl.Cl.Cl.Cl |
| InChIKey | DXWSCXIZIHILNP-UHFFFAOYSA-N |
| InChI | InChI=1S/C12H14N4.4ClH.H2O/c13-9-3-1-7(5-11(9)15)8-2-4-10(14)12(16)6-8;;;;;/h1-6H,13-16H2;4*1H;1H2 |
| PubChem CID | 16211746 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| Tariff Code | 2921599090 |
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
- H319 Causes serious eye irritation
- H341 Suspected of causing genetic defects
- H350 May cause cancer
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- 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
- 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
Documents
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
- [1,1'-Biphenyl]-3,3',4,4'-tetraamine tetrahydrochloride hydrate
- 3,3 inverted exclamation marka-Diaminobenzidine tetrahydrochloride hydrate
- 3,3-Diaminobenzidine (DAB) tetrahydrochloride
- 3,3'-DIAMINOBENZIDINE TETRAHCL HYDRATE
- 3,3'-Diaminobenzidine tetrahydrochloride hydrate, ISOPAC(R)
- 4-(3,4-Diaminophenyl)benzene-1,2-diamine tetrahydrochloride hydrate
- 4-(3,4-diaminophenyl)benzene-1,2-diamine;hydrate;tetrahydrochloride
- C12H20Cl4N4O
- DAB
- DXWSCXIZIHILNP-UHFFFAOYSA-N
Frequently asked questions
What is 3,3'-Diaminobenzidine tetrahydrochloride hydrate primarily used for?
It is commonly used as a chromogenic substrate in immunochemical assays, such as ELISA and immunohistochemistry, for detecting proteins or antigens.
What is the molecular formula and molecular weight of this compound?
The molecular formula is (NH₂)₂C₆H₃C₆H₃(NH₂)₂·4HCl·xH₂O, and the molecular weight is 360.11 g/mol (anhydrous basis).
How should this compound be stored?
Store at -15 to -20°C to maintain stability and prevent degradation.
What grade or purity is available for this product?
Molekula supplies this compound in analytical or biochemical grade, meeting high-purity standards for research applications.
Can Molekula supply this product in bulk quantities?
Yes, we offer bulk quantities upon request—contact us for pricing and availability tailored to your needs.
What documentation is provided with an order of this compound?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.