Chemical Name: Bromocresol Purple
Synonyms: 5′,5”-Dibromo-o-cresolsulfonephthalein; BCP
Product Typical Properties
|Appearance||Slightly yellow fine crystal|
|Loss on drying||0.5%max|
|Residue on ignition||0.1%max|
Bromocresol violet is insoluble in water, yellow when it is soluble in ethanol, purple red when it is soluble in dilute sodium hydroxide and dilute sodium carbonate solution, and its melting point is 241-242 ℃.
Bromocresol violet is an acid-base indicator for chromatographic analysis and nonaqueous solution titration. PH discoloration range: 5.2 (yellow) – 6.8 (purple). Adsorption indicator. Internal standard of amino acid chromatography. Titrate thiocyanate by silver salt method. The serum protein was precipitated by spectrophotometry.
Please store in a dry, cool and dark place