indigoid dye

indigoid dye

[′in·də‚gȯid ‚dī]
(organic chemistry)
Any of the vat dyes with C16H10O2N2(indigo) or C16H8S2O2(thioindigo) groupings; used to dye cotton and rayon, sometimes silk.
References in periodicals archive ?
HPLC analysis of the natural scale insect, madder, and indigoid dyes.
The chemical composition of the indigoid dyes derived from the hypobranchial glandular secretions of Murex mollusks.