The quest for vibrant, long-lasting hair color is a cornerstone of the cosmetic industry. Behind every stunning shade lies a complex interplay of chemistry, where specific compounds act as essential building blocks. NINGBO INNO PHARMCHEM CO.,LTD. is proud to supply 4-nitro-o-phenylenediamine (CAS 99-56-9), a critical 'hair dye intermediate' that plays a pivotal role in achieving these desirable results.

The chemical, also referred to as 4-nitrobenzene-1,2-diamine, is a diamine derivative with a nitro group, making it highly reactive and suitable for oxidative dyeing processes. The 'synthesis of 4-nitro-1,2-phenylenediamine' is a carefully controlled procedure designed to yield a product with specific characteristics essential for color formation. Its 'properties of 4-nitrobenzene-1,2-diamine', such as its orange-red crystalline powder appearance and a purity of ≥99.0% (HPLC), are vital for its function in creating consistent and brilliant hair colors.

In oxidative hair dyeing, 4-nitro-o-phenylenediamine acts as a coupler or primary intermediate, reacting with other components in the dye formulation to form larger, colored molecules that become trapped within the hair shaft. This mechanism ensures the color's longevity and resistance to washing out. The 'uses of 4-nitro-o-phenylenediamine' are varied, contributing to a wide spectrum of shades, from warm browns and reds to deeper tones. For manufacturers aiming to 'buy 4-nitro-o-phenylenediamine online', selecting a supplier like NINGBO INNO PHARMCHEM CO.,LTD. guarantees access to high-quality 'chemical intermediates for hair dyes'.

The stability of the compound, evidenced by its melting point of 199-201°C and low loss on drying (≤0.5%), ensures that it remains viable during storage and formulation. This reliability is crucial for 'hair dye chemistry', where product consistency is paramount for brand reputation and consumer satisfaction. The '4-nitro-o-phenylenediamine hair dye intermediate' is thus a key ingredient in delivering the performance that consumers expect from modern hair color products.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to advancing cosmetic science by providing high-quality chemical ingredients. Our commitment to producing and supplying superior 4-nitro-o-phenylenediamine supports innovation and excellence in the hair color industry, enabling the creation of beautiful and lasting shades.