English | 中文 | Español

Methyl Orange

CAS No.:547-58-0
Product Grade: Industrial Grade
Purity / Assay: 85%
Molecular Formula:C₁₄H₁₄N₃NaO₃S
Molecular Weight:327.33
Synonym(s):Acid Orange 52; Helianthin; Sodium 4-[(4-Dimethylamino)phenylazo]benzenesulfonate

Methyl Orange is a synthetic azo dye and pH indicator widely used in acid-base titrations and analytical chemistry.

It changes from red under acidic conditions to yellow under neutral and alkaline conditions, providing a clear visual endpoint.

The product is also used in textile dyeing, paper coloring, and laboratory analytical applications.

• Acid-base titration: serves as a visual pH indicator with a transition around pH 3.1 to 4.4.

• Analytical chemistry: used in colorimetric and indicator-based assays.

• Textile dyeing: applied as a direct dye for selected fibers.

• Paper coloring: provides orange coloration in specialty paper products.

25kg/drum, 25kg/bag
CAS No.: 547-58-0

Product Name: Methyl Orange

Purity / Assay:85%
Molecular Formula:C₁₄H₁₄N₃NaO₃S
Molecular Weight:327.33
EINECS No.:208-925-3
Synonym(s):Acid Orange 52; Helianthin; Sodium 4-[(4-Dimethylamino)phenylazo]benzenesulfonate

For global customers, we provide complete technical documentation to support product evaluation, regulatory compliance and safe handling during transportation and application.

REQUEST A QUOTE

Product Inquiry — Popup Form