ACID RED 91
CAS# 548-24-3

General Description: Water soluble dye in the Xanthene chemical family.  This dye is commonly used for the coloration of assorted industrial cleaning products, soaps, detergents, wool, acetate, silk, and inks.  

Type: Acid

Color: Red

Number: 91

CAS#: 548-24-3

Color Index #: 45400

Appearance: Dark powder

Shade (in solution): Red

Solubility: Soluble in water

Lightfastness: 2-4 [AATCC; 8 is highest]

Usage Rate: Commonly used at 0.0001 – 1.0% by weight