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Merck
CN

10884308001

Roche

CPRG

Chlorophenol red-β-D-galactopyranoside

Synonym(s):

Chlorophenol Red-β-D-galactopyranoside, chlorophenol red-β-d-galactopyranoside, CPRG, Chlorophenol Red-β-D-galactoside

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About This Item

Empirical Formula (Hill Notation):
C25H22Cl2O10S
CAS Number:
99792-79-7
Molecular Weight:
585.41
UNSPSC Code:
12352204
PubChem Substance ID:
329749219
MDL number:
MFCD05863726
NACRES:
NA.54

Key Documents

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Product Name

CPRG, Chlorophenol red-β-D-galactopyranoside

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

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

InChI key

YOUWVNCQJOMMEU-AETRGLENSA-N

assay

96% (HPLC)

form

powder

packaging

pkg of 250 mg

manufacturer/tradename

Roche

storage condition

protect from light

pH range

6-8

shipped in

dry ice

storage temp.

−20°C (−15°C to −25°C)

Quality Level

100

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Analysis Note

Contaminant: <0.1% chlorophenol red

Application

CPRG has been used as a substrate for β-galactosidase assay.
Colorimetric determination of β-Gal activity in cell extracts and ELISA.

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

CPRG is an approximately 1:1 mixture of the isomers.
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
Store powder dry at -15 to -25 °C; stock solutions at 2–8 °C protected from light.

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

No data available

flash_point_c

No data available

Regulatory Information

涉药品监管产品
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Certificates of Analysis (COA)

Lot/Batch Number
68682724
53404724
52483922
16238400
52483921

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