N-Phenyl-p-phenylenediamine sulfate is a derivative of p-phenylenediamine (PPD), a common ingredient in oxidative hair dyes. It acts as a primary intermediate in hair dye formulations, meaning it undergoes a chemical reaction with an oxidizing agent, like hydrogen peroxide, to produce color. The resulting reaction allows the dye to penetrate the hair shaft, leading to long-lasting color.

Here are key points about its use in hair dyes:

1. Function: N-Phenyl-p-phenylenediamine sulfate helps develop the final color in oxidative hair dye formulations. It works by reacting with other dye intermediates and couplers in the presence of an oxidizer.

2. Color Range: This compound is typically used to produce dark shades, like browns and blacks.

Use: for hair color products

Mixing method: mix in water

Product characteristics: light gray to invisible green

Solubility: can dissolve in water

Storage: can be stored at room temperature Protected from sunlight and heat, the product has a minimum shelf life of 2 years.

INCI Name : N-Phenyl-p-phenylenediamine sulfate