Molekula
1,2-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
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.
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 **technical-grade 1,2-Phenylenediamine** suitable for industrial applications.
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.
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.