Product information "Bromocresol purple *Ultrapure grade*"
Ex: 585 nm. Soluble in: Water. Bromocresol purple (BCP) or 5',5-dibromo-o-cresolsulfophthalein, is a pH indicator. In its sulfone form, it has a pKa value of 6.3, and is usually prepared as a 0.04% aqueous solution. Besides its primary function as an indicator, bromocresol purple is used in medical laboratories to measure albumin.