Molekula
p-Phenylenediamine
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
p-Phenylenediamine is a aromatic diamine used in dye and rubber chemical synthesis, and as a developer in photographic film. It is a white to light pink crystalline solid, soluble in water and ethanol. CAS: 106-50-3, Molecular Formula: C6H4(NH2)2, Molecular Weight: 108.14 g/mol. Store at ambient temperature. Hazardous: Signal word Danger. Molekula supplies p-Phenylenediamine 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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1 kg — £101.30 per pack ex VAT · £121.56 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 grey to pink to red to brown crystals |
| Melting Point | ≥ 138°C |
| Heavy metals | ≤ 20ppm |
| Assay | ≥ 99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 110 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White to slightly red crystals |
| Melting Point | 139-147 °C |
| Boiling Point | 267 °C |
| Density | 1.1 (relative, water = 1) |
| Vapour Pressure | 144 Pa at 100 °C |
| log P (octanol/water) | -0.25 |
Source: PubChem CID 7814 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 80820412 |
| CAS Number | 106-50-3 |
| IUPAC Name | benzene-1,4-diamine |
| EC Number | 203-404-7 |
| Molecular Formula | C6H4(NH2)2 |
| Molecular Weight | 108.14 |
| Exact Mass | 108.0687 |
| SMILES | C1=CC(=CC=C1N)N |
| InChIKey | CBCKQZAAMUWICA-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H8N2/c7-5-1-2-6(8)4-3-5/h1-4H,7-8H2 |
| PubChem CID | 7814 |
| UN Number | UN1673 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2921.51.5000 |
| Tariff Code | 2921511940 |
Safety & GHS
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Toxic
GHS06
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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, English (US), 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-Diaminobenzene
- 1,4-Phenylenediamine
- 4-Aminoaniline
- 4-Phenylenediamine
- Orsin
- p-Aminoaniline
- p-Benzenediamine
- p-Diaminobenzene
- para-phenylenediamine
- Ursol D
Frequently asked questions
What is p-Phenylenediamine used for?
It is primarily used in the synthesis of dyes, pigments, and rubber chemicals, as well as in hair dyes and pharmaceuticals.
What is the chemical formula and molecular weight of p-Phenylenediamine?
The formula is C6H4(NH2)2 and the molecular weight is 108.14 g/mol.
How should p-Phenylenediamine be stored?
It should be stored at ambient temperature, away from moisture and incompatible materials.
What grade of p-Phenylenediamine does Molekula supply?
We supply technical grade; custom grades are available upon request.
Can Molekula supply p-Phenylenediamine in bulk?
Yes, we offer bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a purchase of p-Phenylenediamine?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
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.