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2-NITRO-P-PHENYLENEDIAMINE SULFATE

Description

2-Nitro-p-phenylenediamine sulfate is a synthetic hair dye ingredient commonly used in semi-permanent and permanent hair coloring products. This compound belongs to the family of aromatic diamines and is known for its ability to produce rich, dark shades, particularly in the brown and black color spectrum. Its chemical structure allows for effective penetration of the hair shaft, resulting in long-lasting color.

The sulfate form of this ingredient enhances its solubility in aqueous formulations, making it easier to incorporate into various hair dye products. When used in hair coloring systems, it typically works in conjunction with other dye precursors and developers to create the desired shade. The compound reacts with hydrogen peroxide to form larger, colored molecules within the hair structure.

While effective for coloring, 2-nitro-p-phenylenediamine sulfate requires careful formulation and usage due to its potential for skin sensitization in some individuals. Proper patch testing is recommended before use to minimize adverse reactions. It's important to note that this ingredient is subject to regulations in various countries regarding its concentration and application in hair dye products.