pyrazolone dye

pyrazolone dye

[pə′raz·ə‚lōn ‚dī]

(organic chemistry)

An acid dye containing both ‒N=N‒ and =C=C= chromophore groups, such as tartrazine; used for silk and wool.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.