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CPRG

ROCHE/10884308001 - Chlorophenol red-β-D-galactopyranoside

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

CAS Number: 99792-79-7
Empirical Formula (Hill Notation): C25H22Cl2O10S
Molecular Weight: 585.41
MDL Number: MFCD05863726
Linear Formula: C25H22Cl2O10S
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-10884308001 250 mg
 $144.00
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assay 96% (HPLC)
form powder
InChI 1S/C25H22Cl2O10S/c26-15-9-12(5-7-17(15)29)21(14-3-1-2-4-20(14)38(33,34)35)13-6-8-18(16(27)10-13)36-25-24(32)23(31)22(30)19(11-28)37-25/h1-10,19,22-25,28,30-32H,11H2,(H,33,34,35)/b21-12-/t19-,22+,23+,24-,25-/m1/s1
InChI key YOUWVNCQJOMMEU-AETRGLENSA-N
manufacturer/tradename Roche
packaging pkg of 250 mg
pH range 6-8
Quality Level 100 
shipped in dry ice
SMILES string OC[C@H]1O[C@@H](Oc2ccc(cc2Cl)C(=C3/C=CC(=O)C(Cl)=C3)c4ccccc4S(O)(=O)=O)[C@H](O)[C@@H](O)[C@H]1O
storage condition protect from light
storage temp. −20°C (−15°C to −25°C)
Application: Colorimetric determination of β-Gal activity in cell extracts and ELISA.
Application: CPRG has been used as a substrate for β-galactosidase assay.
Biochem/physiol Actions: Chlorophenol red-β-D-galactopyranoside (CPRG) might possess oestrogenic activity.
General description: Chlorophenol red-β-D-galactopyranoside (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.
Preparation Note: Working concentration: 5 mmol/l
Storage conditions (working solution): Reconstituted solution is stable for one day at 2 to 8 °C
Quality: Contaminant: <0.1% chlorophenol red
Sequence: CPRG is an approximately 1:1 mixture of the isomers.
Storage and Stability: Store powder dry at -15 to -25 °C; stock solutions at 2–8 °C protected from light.
RIDADR NONH for all modes of transport
WGK Germany WGK 1
Flash Point(F) No data available
Flash Point(C) No data available
Purity 96% (HPLC)
Storage Temp. −20°C (−15°C to −25°C)
UNSPSC 12352204

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