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857890 Sigma-Aldrich

m-Cresol Purple

indicator grade, Dye content 90 %

Synonym: m-Cresolsulfonphthalein

  • CAS Number 2303-01-7

  • Empirical Formula (Hill Notation) C21H18O5S

  • Molecular Weight 382.43

  •  Beilstein Registry Number 350314

  •  EC Number 218-960-6

  •  MDL number MFCD00005871

  •  PubChem Substance ID 24888455

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, C, Cell Biology, Hematology and Histology,
grade   indicator grade
InChI Key   OLQIKGSZDTXODA-UHFFFAOYSA-N
composition   Dye content, 90%
useful pH range   1.2 - 2.8, red to yellow (acid)
  7.4 - 9.0, yellow to violet (alkaline)
absorption   λmax 371 nm (2nd)
  λmax 579 nm

Description

Packaging

1, 5, 10 g in glass bottle

Application

m-Cresol purple has been used to measure pH via spectrophotometer.

Biochem/physiol Actions

m-Cresol purple is a pH indicator. It changes from red (pH 1.2) to yellow (2.8) and yellow (7.4) to purple (9.0).

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Certificate of Origin


Milli-Q® Water Purification Solutions

Biomedical Applications
Protocols & Articles
Peer-Reviewed Papers
15

References

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