ROCHE CPRG, Chlorophenol red-B-D-galactopyranoside

Synonyms: Chlorophenol Red-β-D-galactopyranoside; chlorophenol red-β-d-galactopyranoside; CPRG; Chlorophenol Red-β-D-galactoside

Empirical Formula (Hill Notation): C₂₅H₂₂Cl₂O₁₀S

Formula Weight: 585.41

Linear Formula: C₂₅H₂₂Cl₂O₁₀S

MDL Number: MFCD05863726

Purity: 96% (HPLC)

UNSPSC Code: 12352204

RIDADR: NONH for all modes of transport

Application:
Colorimetric determination of β-Gal activity in cell extracts and ELISA.

General description:
CPRG is a long-wavelength dye which is commonly used for colorimetric assays. The reaction product has a dark red color and is soluble in water. It can be evaluated photometrically at 574 or 578 nm.
The chemical formula on the label represents the monosodium salt.

Other Notes:
For life science research only. Not for use in diagnostic procedures.

Quality:
Contaminant: <0.1% chlorophenol red

Preparation Note:
Working concentration: 5 mmol/l
Storage conditions (working solution): Reconstituted solution is stable for one day at 2 to 8 °C

Sequence:
CPRG is an approximately 1:1 mixture of the isomers.