Intermediates

2-Amino-5-nitrophenol

  • CAS No.121-88-0
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

High-purity 2-Amino-5-nitrophenol (CAS 121-88-0), a key intermediate for oxidative hair dye formulations and specialty colorants.

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Product Technical Details

Product Overview

2-Amino-5-nitrophenol is a high-value aromatic intermediate widely employed in the synthesis of oxidative hair dyes and specialty organic pigments. With a molecular formula of C6H6N2O3 and a molecular weight of 154.12 g/mol, this compound features a unique arrangement of amino, hydroxyl, and nitro functional groups on the benzene ring, enabling selective electrophilic and nucleophilic transformations critical to colorant chemistry.

Specifications

Molecular FormulaC6H6N2O3
Molecular Weight154.12 g/mol
Density1.511 g/cm³
Melting Point198–202 °C
Boiling Point364 °C
Refractive Index1.688
AppearanceYellow crystalline powder
Purity (HPLC)≥99.0%
Ash Content≤0.5%
Moisture≤1.0%
Iron (Fe) Content≤100 ppm

Industrial Applications

This compound serves primarily as a building block in the cosmetic and personal care industry, specifically as an intermediate in the production of permanent and semi-permanent hair dye formulations. Its electron-rich aromatic structure facilitates coupling reactions with diazonium salts or other developers to generate stable, vibrant chromophores.

Key advantages of our 2-Amino-5-nitrophenol include:

  • Consistent batch-to-batch quality meeting stringent cosmetic-grade standards
  • Low heavy metal content suitable for dermal application products
  • Optimized solubility profile for efficient formulation processing
  • Compliance with international regulatory frameworks for cosmetic ingredients

Stored in a cool, dry, and well-ventilated area, the product maintains stability under recommended conditions. Standard packaging is 25 kg per fiber drum, with custom packaging available upon request to meet diverse logistical and safety requirements.