AKA: 121-88-0, 5-Nitro-2-aminophenol, 2-Hydroxy-4-nitroaniline, Ursol Yellow Brown A, 3-Nitro-6-aminophenol, Rodol YBA, 3-Hydroxy-4-aminonitrobenzene, C.I. 76535
Synthetic
Not Clean
2-amino-5-nitrophenol appears as brown amorphous granules or powder. Melting point 198-202 °C.
Solubility less than 1 mg/mL at 68 °F (NTP, 1992)
Formula
C6H6N2O3
Mol. Weight
154.12
CAS #
121-88-0
Form
Powder
State
2-amino-5-nitrophenol appears as brown amorphous granules or powder. Melting point 198-202 °C.
Functions
Hair Dyeing
Colors Hair
Traditional Use
A synthetic dye precursor developed for hair coloring applications in the 20th century. It functions as an oxidative dye intermediate in alkaline permanent wave systems.