4-Nitro-o-phenylenediamine (Brown 4N) is an aromatic diamine compound used as an oxidative hair dye intermediate that produces brown to reddish-brown shades. It is valued in professional hair coloring for delivering warm natural brown tones with good depth and color fastness. SUNCHEM supports international buyers with 4-Nitro-o-Phenylenediamine (Brown 4N) sourcing from qualified Chinese producers, with quality documentation, export coordination, and logistics support.

