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Methyl red CAS 493-52-7

Chemical name: BROMOCRESOL GREEN-METHYL RED

Synonymous names: Methyl red chloride；

O-METHYL RED;

C.I. Acid Red 2;

Acid Red 2;

2-Carboxy-4'-(dimethylamino)azobenzene

CAS No: 493-52-7

EINECS No: 207-776-1

Molecular formula: C15H15N3O2

Content: ≥99.9%

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Structural formula：

Product Description：

Index	Specifications
Appearance	Purple shiny crystal or dark red powder
PH Color change interval	3.8 (yellow-green)-5.4 (blue)
Ethanol dissolution test	Qualified
Residue on ignition，SO4	≤0.2%
Loss on Drying	≤1.0%
Melting point	179-182 °C

Diverse applications：

Methyl red has a wide range of applications, especially in scientific research and laboratory testing:

1. As a classic acid-base indicator, methyl red can change from red to yellow in the pH range of 4.4 to 6.2, providing an accurate indicator for acid-base quality analysis.

2. In the field of biology, methyl red is widely used for in vivo staining of protozoa, helping scientists observe and study the structure and behavior of tiny life forms.

3. In clinical testing, methyl red is used for biochemical analysis of serum proteins, providing important information for disease diagnosis.

4. It can also be combined with other indicators such as bromocresol green, methylene blue, etc. to form a mixed indicator to improve the sensitivity and accuracy of color changes, especially in titration analysis.

Packaging specifications:

25kg/barrel, packaging can also be customized according to customer requirements.

Storage conditions:

Need to be sealed and stored in a cool, dry place.