o-Nitro-paraphenylenediamine (ONPD) is a hair dye
and a sensitizer in hairdressers.
This compound is used in hair and fur dyes.
2-Nitro-4-phenylene-diamine is a dyestuff used to dye furs brown and reddish-brown; dye intermediate in semi-permanent and permanent hair coloring products
(produces brown and red shades on the hair); in different hair-dyeing preparations.
ChEBI: A primary amino compound that is p-phenylenediamine in which one of the hydrogens attached to the benzene ring is replaced by a nitro group. It is a cosmetic hair dye intermediate that is used in permanent hair colouring products (diluted 1:1
ith an oxidising agent prior to application).
Almost black needles with dark-green luster or black powder.
1,4-Diamino-2-nitrobenzene may be sensitive to prolonged exposure to light and air. Insoluble in water.
1,4-Diamino-2-nitrobenzene is incompatible with strong oxidizing agents.
Flash point data for 1,4-Diamino-2-nitrobenzene are not available; however, 1,4-Diamino-2-nitrobenzene is probably combustible.
Flammability and Explosibility
Non flammable
ONPD is a hair dye and a sensitizer in hairdressers and
consumers who are generally sensitive to PPD too.
Suspected carcinogen with experimental carcinogenic and neoplastigenic data. Poison by intraperitoneal route. Moderately toxic by ingestion. An experimental teratogen. Other experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx,.
