Meta-Phenylenediamine (MPD)
CAS Number: 108-45-2
Meta-phenylenediamine (MPD) is a difunctional aromatic amine used as a developer in oxidative dye systems, as an intermediate for direct and reactive dyes, and as a monomer for polyamide and polyimide polymers. Its meta-substitution provides distinct reactivity compared to the para isomer, enabling unique color formulations in hair dye and textile dye applications. Chemzip offers technical and refined grades with reliable batch-to-batch consistency.
Technical Specifications
| appearance | White to off-white crystalline flakes |
| purity (%) | ≥99.0 |
| melting point (°C) | 62–66 |
| residue on ignition (%) | ≤0.05 |
Applications
- Developer in oxidative hair dye formulations
- Direct dye and acid dye intermediate for textiles
- Reactive dye synthesis enabling unique hue range
- Polyamide (nylon) and polyimide monomer
- Epoxy curing agent for structural composites
Key Features
- Bifunctional diamine enabling unique dye architectures
- Low ignition residue suitable for high-purity polymer applications
- Moisture-resistant packaging with sealed PE inner bags
- Consistent melting point ensures reproducible formulation results
Send Inquiry
CAS Number
108-45-2
Category
Dye / Pigment IntermediatesAvailability
In StockSample
Dispatched within 5 days