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114537 Sigma-Aldrich

Phenol Red sodium salt

ACS reagent, Dye content 90 %

Synonym: Phenolsulfonephthalein sodium salt

  • CAS Number 34487-61-1

  • Empirical Formula (Hill Notation) C19H13NaO5S

  • Molecular Weight 376.36

  •  Beilstein/REAXYS Number 6260026

  •  EC Number 252-057-8

  •  MDL number MFCD00066901

  •  PubChem Substance ID 24847180

  •  NACRES NA.47

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Cell Biology, Hematology and Histology, Indicators,
Quality Level   200
grade   ACS reagent
form   powder
composition   Dye content, 90%
clarity of soln   passes test
application(s)   titration: suitable
visual transition interval   6.8 - 8.2, yellow to red
  6.8 - 8.2, yellow to red
mp   285 °C (dec.) (lit.)
λmax   423 nm
ε (extinction coefficient)   ≥19000 at 422-426 nm in methanol
  ≥900 at 256-269 nm in methanol
SMILES string   [Na+].Oc1ccc(cc1)C2(OS(=O)(=O)c3ccccc23)c4ccc([O-])cc4
InChI   1S/C19H14O5S.Na/c20-15-9-5-13(6-10-15)19(14-7-11-16(21)12-8-14)17-3-1-2-4-18(17)25(22,23)24-19;/h1-12,20-21H;/q;+1/p-1
InChI key   HKHYOKBQJILTEI-UHFFFAOYSA-M

Description

Application

Phenol Red has been used for preparation of phosphate buffer saline (PBS)-with phenol red for microfluidic assay for simultaneous culture of multiple cell types. It has also been used for horseradish peroxidase-phenol red (HRP-PR) H2O2 (hydrogen peroxide) detection assay to identify redox cycling compounds.

Suitable for use as a pH indicator.

Packaging

5, 25 g in glass bottle

Biochem/physiol Actions

Phenol Red is a pH indicator which changes color from yellow to red.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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