99792-50-4

Chlorophenol red-β-D-galactopyranoside sodium is a long-wavelength dye, which has been widely used for colorimetric assays. Chlorophenol red-β-D-galactopyranoside sodium is also a β-D-Galactosidase (HY-P2869I) substrate commonly used in recombinant yeast oestrogenic assays[1][2].

[1] Sicard C, et al. A rapid and sensitive fluorimetric β-galactosidase assay for coliform detection using chlorophenol red-β-D-galactopyranoside. Anal Bioanal Chem. 2014 Sep;406(22):5395-403. DOI:10.1007/s00216-014-7935-0
[2] Els Vanderperren, et al. Oestrogenic activity of CPRG (chlorophenol red-β-D-galactopyranoside), a β-galactosidase substrate commonly used in recombinant yeast oestrogenic assays. Biomarkers. 2001;6(5):375-80. DOI:10.1080/13547500110044258