2-Nitro-p-Phenylenediamine

AKA “2-Nitro-4-phenylenediamine, RefChem:88700, 4-diamine, 4-phenylenediamine, 4-Diamino-2-nitrobenzene, 4-Benzenediamine, 5-Diaminonitrobenzene, 4-benzenediamine”

Synthetic

Ingredient Facts

2-Nitro-p-Phenylenediamine

AKA: 2-Nitro-4-phenylenediamine, RefChem:88700, 4-diamine, 4-phenylenediamine, 4-Diamino-2-nitrobenzene, 4-Benzenediamine, 5-Diaminonitrobenzene, 4-benzenediamine

Synthetic · Hair Dyeing · EWG: 6

Synthetic

Clean

A synthetic color ingredient that creates deep, lasting hair dye shades. It's commonly used in permanent hair coloring formulas to deliver rich, vibrant color that resists fading.

Solubility less than 1 mg/mL at 72 °F (NTP, 1992)

Formula

C6H7N3O2

Mol. Weight

153.14

CAS #

5307-14-2

Form

Liquid

State

Almost black needles with dark-green luster or black powder. (NTP, 1992)

See origin →

Functions

Hair Dyeing

Antioxidant Protection

Reduces Inflammation

Fights Bacteria

Colors Hair

Traditional Use

A synthetic hair dye ingredient developed in the early-to-mid 20th century. Created to replace earlier, less stable dye precursors and produce permanent hair color.