Product Overview
Bromocresol Purple
Molecular Formula:C21H16Br2O5S
CAS Number:115-40-2
Molecular Weight:540.22
Bromocresol Purple is a pH indicator that is typically prepared as a 0.04% solution. It is used to measure albumin in medical laboratories and is added to acid stop baths used in photographic film processing to indicate when the solution is no longer acidic and needs to be replaced.
Synonyms: BCP ; 5,5-Dibromo-o-cresolsulfonphthalein
TEST | SPECIFICATION | RESULTS |
---|---|---|
Appearance | Light purple or pink to yellow-tan | Pink powder |
Identification (FTIR) | Consistent with structure | Complies |
Melting Point | 240-244 °C |