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114510 Sigma-Aldrich

Methyl Orange

ACS reagent, Dye content 85 %

Synonym: 4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt, Acid Orange 52, Helianthin, Orange III

  • CAS Number 547-58-0

  • Empirical Formula (Hill Notation) C14H14N3NaO3S

  • Molecular Weight 327.33

  •  Colour Index Number 13025

  •  Beilstein Registry Number 4732884

  •  EC Number 208-925-3

  •  MDL number MFCD00007502

  •  PubChem Substance ID 24847177

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Cell Biology, Hematology and Histology, Indicators,
grade   ACS reagent
InChI Key   STZCRXQWRGQSJD-GEEYTBSJSA-M
composition   Dye content, 85%
pH range   3.0 - 4.4, pink to yellow
visual transition interval   3.2 - 4.4, red to yellow
absorption   λmax 505 nm

Description

Packaging

25, 100, 500 g in glass bottle

Biochem/physiol Actions

Methyl Orange is an azo dye which works as a pH indicator.

Safety & Documentation

Safety Information

Symbol 
GHS06  GHS06
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 3143PSN1 6.1 / PGIII
WGK Germany 
3

Documents

Certificate of Analysis

Certificate of Origin


Milli-Q® Water Purification Solutions
Protocols & Articles
Peer-Reviewed Papers
15

References

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