Para-Aminophenol


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para-aminophenol

[¦par·ə ə‚mē·nō′fē·nȯl]
(organic chemistry)
p-HOC6H4NO2 A phenol in which an amino (‒NH2) group is located on the benzene ring of carbon atoms para (p) to the hydroxyl (‒OH) group; used as a photographic developer and as an intermediate in dye manufacture.

Para-Aminophenol

 

the Para isomer of aminophenol. White crystals, melting point 186°C. The structure of Para-aminophenol is

At 0°C, 1g of Para-aminophenol dissolves in 90 g of water or 22 g of alcohol; the compound is readily soluble in hot water and alcohol and insoluble in benzene and chloroform, Para-amino-phenol is a strong reducing agent and oxidizes quickly upon exposure to atmospheric oxygen, especially in alkaline solutions. It reacts with acids and bases to form salts.

Para-aminophenol, a photographic developer, is obtained by reducing Para-nitrophenol or nitrobenzene. Developers are a widely used class of compounds, although they are known to produce slight photographic fogging. Para-aminophenol is used in the synthesis of many organic dyes and was first synthesized by the German chemists A. Baeyer and H. Caro in 1874.

References in periodicals archive ?
Effects of the analgesic acetaminophen (paracetamol) and its para-aminophenol metabolite on viability of mouse-cultured cortical neurons.
Novacap is an international group that produces and distributes active pharmaceutical ingredients and essential chemicals products that are used in everyday applications such as aspirin, paracetamol, other APIs, salicylic acid, para-aminophenol, soda ash, sodium bicarbonate, phenol, oxygenated solvents and ferric chloride.