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Catalog Number:
01239
CAS Number:
547-58-0
Methyl orange
Grade:
ACS reagent
Synonym(s):
4-[4-(Dimethylamino)-phenylazo]benzenesulfonic acid sodium salt, Acid orange 52, CI 13025
Hazmat
Documents
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Product Information

Used as pH indicator.

Synonyms
4-[4-(Dimethylamino)-phenylazo]benzenesulfonic acid sodium salt, Acid orange 52, CI 13025
CAS Number
547-58-0
Grade
ACS reagent
Molecular Formula
C14H14N3O3SNa
Molecular Weight
0
MDL Number
MFCD00007502
Appearance
Orange-yellow solid
Conditions
Store at RT
General Information
Synonyms
4-[4-(Dimethylamino)-phenylazo]benzenesulfonic acid sodium salt, Acid orange 52, CI 13025
CAS Number
547-58-0
Grade
ACS reagent
Molecular Formula
C14H14N3O3SNa
Molecular Weight
0
MDL Number
MFCD00007502
Appearance
Orange-yellow solid
Conditions
Store at RT
Properties
Additional property information coming soon!
-
Safety and Regulations
Hazmat
Yes
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Methyl orange is widely utilized in research focused on:

  • pH Indicator: Commonly used in titrations, it changes color from red to yellow as the pH shifts from acidic to neutral, making it a reliable choice for chemists in laboratories.
  • Textile Industry: Employed as a dye, it provides vibrant colors for fabrics, enhancing the aesthetic appeal of clothing and home textiles.
  • Food Industry: Used as a food colorant, it helps in achieving specific hues in products, although its use is regulated in many countries due to safety concerns.
  • Biochemical Research: Serves as a model compound in studies related to azo dyes, aiding researchers in understanding dye degradation and environmental impact.
  • Educational Purposes: Frequently used in chemistry education to demonstrate acid-base reactions, helping students visualize chemical changes in real-time.

Citations