Product Description: C.I. Acid yellow 99 is an acidic yellow dye that combines with coconut shell pith through electrostatic and complexing reactions.
Formula: C16H11CrN4NaO9S
References: [1]Khan M M R, et al. Mechanistic studies on the binding of Acid Yellow 99 on coir pith[J]. Bioresource technology, 2011, 102(3): 2394-2399.