Ortho-Nitroaniline (o-NA)
CAS Number: 88-74-4
Ortho-nitroaniline (o-NA) is an important aromatic amine intermediate primarily used in the synthesis of orange and red azo dyes and as a precursor for pesticide and pharmaceutical production. Its ortho-substitution pattern imparts unique coupling characteristics that yield vivid orange hues in reactive and direct dyes. Chemzip supplies high-purity o-NA meeting international dyestuff industry standards.
Technical Specifications
| appearance | Orange-yellow crystalline powder |
| purity (%) | ≥98.5 |
| melting point (°C) | 69–72 |
| residue on ignition (%) | ≤0.1 |
Applications
- Orange and red azo dye intermediate
- Reactive dye synthesis for cotton fabrics
- Pesticide intermediate (2-chloronitrobenzene pathway)
- Pharmaceutical intermediate production
- Corrosion inhibitor formulation
Key Features
- High purity minimizes side reactions during diazotization
- Consistent orange-yellow crystal form for accurate dosing
- Exported to over 20 countries with stable supply record
- Available as bulk or packaged in 25 kg PE-lined bags
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CAS Number
88-74-4
Category
Dye / Pigment IntermediatesAvailability
In StockSample
Dispatched within 5 days