Molekula
1,2-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
1,2-Phenylenediamine (CAS 95-54-5) is an aromatic diamine used primarily in the synthesis of dyes, pigments, pharmaceuticals, and rubber chemicals. It serves as a key intermediate in the production of azo dyes, corrosion inhibitors, and photographic developers. This solid compound has a molecular formula of C6H8N2 and a molecular weight of 108.14 g/mol. It must be stored at ambient conditions in a well-ventilated area, away from oxidizing agents and moisture. The substance carries a Danger signal word due to its severe health hazards, including skin sensitization and toxicity if inhaled or ingested. Molekula supplies 1,2-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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | white to off-white powder |
| Identification | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 136 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystalline solid when pure |
| Melting Point | 102.1 °C |
| Boiling Point | 257 °C |
| Water Solubility | 40.7 g/L at 35 °C |
| Solubility (other solvents) | Freely soluble in alcohol, chloroform, ether |
| Vapour Pressure | 0.0013 kPa at 20 °C |
| pKa | pKa2 = 4.47 |
| log P (octanol/water) | 0.15 |
Source: PubChem CID 7243 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90030661 |
| CAS Number | 95-54-5 |
| IUPAC Name | benzene-1,2-diamine |
| EC Number | 202-430-6 |
| Molecular Formula | C6H8N2 |
| Molecular Weight | 108.14 |
| Exact Mass | 108.0687 |
| SMILES | C1=CC=C(C(=C1)N)N |
| InChIKey | GEYOCULIXLDCMW-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H8N2/c7-5-3-1-2-4-6(5)8/h1-4H,7-8H2 |
| PubChem CID | 7243 |
| UN Number | UN1673 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2921.51.10.00 |
| Tariff Code | 2921511910 |
Safety & GHS
-
Toxic
GHS06
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H312+H332 Harmful in contact with skin or inhaled
- H317 May cause an allergic skin reaction
- H340 May cause genetic defects
- H351 Suspected of causing cancer
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- 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
- P310 Immediately call a POISON CENTER or doctor/physician
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
- 1,2-Benzenediamine
- 1,2-Diaminobenzene
- 2-Aminoaniline
- benzene-1,2-diamine
- o-Benzenediamine
- o-Diaminobenzene
- O-PHENYLENEDIAMINE
- Orthamine
- ortho-Phenylenediamine
- PODA
Frequently asked questions
What is 1,2-Phenylenediamine commonly used for?
1,2-Phenylenediamine is primarily used as a chemical intermediate in the production of dyes, pigments, and pharmaceuticals, including hair dyes and rubber chemicals.
What is the molecular formula and molecular weight of 1,2-Phenylenediamine?
The molecular formula is C₆H₈N₂, and the molecular weight is 108.14 g/mol.
How should 1,2-Phenylenediamine be stored?
Store in a tightly sealed container at ambient temperature, away from moisture, heat, and incompatible substances.
What grades of 1,2-Phenylenediamine does Molekula supply?
Molekula supplies 1,2-Phenylenediamine as a white to off-white powder with identification conforming to reference. Please contact Molekula for details on available grades.
Can Molekula supply 1,2-Phenylenediamine in bulk quantities?
Yes, Molekula can supply bulk quantities of 1,2-Phenylenediamine, with packaging options tailored to your needs.
What documentation comes with an order of 1,2-Phenylenediamine?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a packing list.
Is 1,2-Phenylenediamine dangerous goods for shipping?
Yes. 1,2-Phenylenediamine ships as dangerous goods: UN1673, class 6.1, packing group III.
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