m-Phenylenediamine
m-Phenylenediamine (CAS 108-45-2), a diaminobenzene derivative with the molecular formula C6H8N2 and a molar mass of 108.14 g/mol, is a versatile organic compound. It is commonly encountered as a tan to light brown crystalline solid. This chemical serves as a key intermediate in the synthesis of various organic compounds, including polymers, dyes, and pharmaceuticals. Its reactive amine groups make it valuable in numerous chemical transformations.
- IUPAC
- 1,3-Benzenediamine,1,3-Diaminobenzene,1,3-Phenylenediamine,MPDA
- Synonyms
- 1,3-Benzenediamine1,3-DiaminobenzeneMPDA3-Aminaniline
Polymer Synthesis
m-Phenylenediamine is a crucial monomer in the production of high-performance polymers such as aramid fibres and polyamides. These materials exhibit excellent thermal stability and mechanical strength, finding applications in aerospace and protective clothing.
Dye and Pigment Intermediate
It serves as a foundational building block for azo dyes and other colourants used in textiles and printing inks. Its structure allows for the formation of chromophores essential for vibrant and durable colours.
Pharmaceutical Intermediates
The compound is employed in the synthesis pathway of certain pharmaceutical active ingredients. Its diamine functionality facilitates the construction of complex molecular architectures required for drug development.
Corrosion Inhibitors
m-Phenylenediamine can be used in the formulation of corrosion inhibitors, particularly for protecting metal surfaces in industrial processes. It helps to form a protective layer that prevents degradation.
| Molecular weight | 108.14 |
|---|---|
| Linear formula | C6H4-1,3-(NH2)2 |
| Assay | ≥99.0% (T) |
| Boiling point | 282-284 °C |
| Vapour pressure | 0.62 mmHg (100 °C) |
| Vapour density | 3.7 (vs air) |
| Autoignition temp | 1040 °F |
| Melting point | 61-64 °C64-66 °C |
Hazard statements
- H301Toxic if swallowed
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H341Suspected of causing genetic defects
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P311Call a POISON CENTER or doctor
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1673 6.1 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 23/24/25-36-43-50/53-68 |
| Safety statements (S) | 28-36/37-45-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is m-Phenylenediamine used for?
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m-Phenylenediamine (CAS 108-45-2) is primarily used as an intermediate in the synthesis of polymers like aramids, dyes, pigments, and pharmaceuticals, as well as in corrosion inhibitors.
What is the CAS number and formula for m-Phenylenediamine?
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The CAS number for m-Phenylenediamine is 108-45-2, and its linear formula is C6H8N2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies m-Phenylenediamine with an assay of ≥99.0% (T). We do not represent this product as USP, BP, or EP grade.
What are the main hazards associated with m-Phenylenediamine?
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m-Phenylenediamine is acutely toxic if swallowed, in contact with skin, or if inhaled (H301 + H311 + H331). It can cause an allergic skin reaction (H317), serious eye irritation (H319), is suspected of causing genetic defects (H341), and is very toxic to aquatic life with long-lasting effects (H410). Appropriate personal protective equipment, including a dust mask type N95, eyeshields, faceshields, gloves, and P2 respirator cartridges, is essential.
How is m-Phenylenediamine packed and shipped?
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m-Phenylenediamine is classified under UN 1673, Hazard Class 6.1, Packing Group III. Tech Serve Solutions exports fine chemicals globally, ensuring compliant packaging and shipping procedures.
How can I request a sample or quote for m-Phenylenediamine?
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To request a sample or obtain a quote for m-Phenylenediamine, please contact our sales team through the website or by phone.
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