2-amino-4-nitrophenol appears as orange prisms or yellow powder. No odor. (NTP, 1992)
Solubility less than 1 mg/mL at 68 °F (NTP, 1992)
Formula
C6H6N2O3
Mol. Weight
154.12
CAS #
99-57-0
Form
Powder
State
2-amino-4-nitrophenol appears as orange prisms or yellow powder. No odor. (NTP, 1992)
Functions
Hair Dyeing
Antioxidant Protection
Reduces Inflammation
Fights Bacteria
Colors Hair
Traditional Use
A synthetic aromatic compound developed as a hair dye precursor in oxidative coloring systems. It was created in the 20th century as part of the shift from natural plant dyes to synthetic alternatives.