Aminophenol

The three aminophenol isomers:
Left: 2-Aminophenol (o-aminophenol)
Center: 3-Aminophenol (m-aminophenol)
Right: 4-Aminophenol (p-aminophenol)

Aminophenol may refer to any of three isomeric chemical compounds:

They are simultaneously an aniline and a phenol.