Description
Bromocresol purple (BCP) or 5′,5″-dibromo-o-cresolsulfophthalein, is a dye of the triphenylmethane family (triarylmethane dyes) and a pH indicator. Bromocresol purple is used in medical laboratories to measure albumin. It can be used as an additive to acid stop baths to indicate that the bath has reached neutral pH and needs to be replaced.




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