indophenol

noun Chemistry.

1. a quinonimine derivative that is the parent substance of the blue and green indophenol dyes.
2. any derivative of this compound.
3. any of various related dyes.

noun

1. a derivative of quinonimine. Formula: HOC 6 H 4 NC 6 H 4 O
2. any of a class of derivatives of this compound, esp one of the blue or green dyes that are used for wool and cotton