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114480

Sigma-Aldrich

Cresol Red sodium salt

indicator grade

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About This Item

Fórmula empírica (notación de Hill):
C21H17NaO5S
Número de CAS:
62625-29-0
Peso molecular:
404.41
EC Number:
263-654-8
MDL number:
MFCD00001618
UNSPSC Code:
12171500
PubChem Substance ID:
24847175
NACRES:
NA.47

grade

indicator grade

form

solid

mp

250 °C (dec.) (lit.)

solubility

H2O: 1 mg/mL

λmax

425 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].Cc1cc(ccc1O)\C(=C2/C=CC(=O)C(C)=C2)c3ccccc3S([O-])(=O)=O

InChI

1S/C21H18O5S.Na/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26;/h3-12,22H,1-2H3,(H,24,25,26);/q;+1/p-1/b21-16-;

InChI key

GBXGEGUVARLBPB-PLMZOXRSSA-M

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Application

Cresol Red has been used for checking the immobilized carbonic anhydrase-catalyzed reactions. It has also been used in the loading buffer for MHC (major histocompatibility complex) class I typing through PCR.

Biochem/physiol Actions

Cresol Red is used as a pH indicator.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Bao-sheng Liu et al.
Guang pu xue yu guang pu fen xi = Guang pu, 23(3), 539-542 (2003-09-05)
The reactions between HSA and acidic phenolsulfonphthaleins, including phenol red, cresol red, chlorophenol red, bromocresol purple and m-cresol purple, have been investigated by fluorescence spectrometry. The experiments showed that all of the selected acidic phenolsulfonphthaleins strongly quenched the fluorescence produced
F Ahmadi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 67(2), 412-419 (2006-09-09)
The effects of cationic cetyltrimethylammonium bromide (CTAB), hexadecylpyridinum chloride (HDPC) and anionic sodium dodecylsulphate (SDS) surfactants on dissociation constants and transition intervals of methyl red, methyl orange and cresol red were studied spectrophotometrically. The results show that all studied indicators
Ewa Iwaszko et al.
Journal of photochemistry and photobiology. B, Biology, 74(1), 13-21 (2004-03-27)
The effect of light on proton transport across lipid membranes of small unilamellar liposomes containing incorporated major light-harvesting pigment-protein complex of Photosystem II (LHCII) has been studied with the application of pH-sensitive dyes entrapped inside vesicles. Proton permeability coefficient for
K Elamrani et al.
Biochimica et biophysica acta, 727(1), 22-30 (1983-01-05)
The kinetics of H+/OH- diffusion across dimyristoyl phosphatidic acid bilayer membranes was measured by following the absorbance of the pH-sensitive indicator Cresol red (o-cresolsulfonphthalein) entrapped in single lamellar vesicles after rapidly changing the external pH in a stopped-flow apparatus. The
K Schilling et al.
Clinical chemistry, 39(2), 251-256 (1993-02-01)
If buffer/indicator systems are used as optical thermometers in multicuvettes, the temperature resolution is limited by errors of optical measurements produced mainly by variations of pathlength and blank transmittance of the wells. Theoretical and practical approaches show that, in multicuvettes
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