ClassID:

101949

C09B11/245 - CPC Classification

Classification description:

Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl; Amino derivatives of triarylmethanes; Phthaleins containing amino groups ; Phthalanes; Fluoranes; Phthalides; Rhodamine dyes; Phthaleins having heterocyclic aryl rings; Lactone or lactame forms of triarylmethane dyes Phthaleins having both OH and amino substituent(s) on aryl ring

Recent Application in this class: