phthalin

A substance formed by the reduction of a phthalein. See phenolphthalin.

A colorless crystalline substance obtained by reduction from phthaleïn, into which it is easily converted by oxidation; hence, any one of the series of which phthalin proper is the type.

A colourless crystalline substance obtained by reduction from phthalein, into which it is easily converted by oxidation.

Any of the series of which phthalin proper is the type.