Chlorophenol red-beta-D-galactopyranoside (CPRG) is an efficient and sensitive chromogenic substrate for beta-galactosidase (HY-P2869), widely used in colorimetric assays. Chlorophenol red-beta-D-galactopyranoside itself appears pale yellow. When it is specifically hydrolyzed by beta-galactosidase, it releases chlorophenol red. The released chlorophenol red turns purple-red under alkaline or neutral pH conditions. This color change from yellow to red can be quantitatively detected at wavelengths of 540-572 nm using visible spectrophotometry[1][2].
Molecular Weight:
585.41
Purity:
99.5
CAS Number:
[99792-79-7]
Formula:
C25H22Cl2O10S
Target:
Biochemical Assay Reagents
Application Notes:
MCE Product type: Dye Reagents
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