CAS 845-10-3

Methyl red sodium salt

Description:

Methyl red sodium salt, with the CAS number 845-10-3, is a pH indicator commonly used in titrations and various laboratory applications. It is the sodium salt form of methyl red, which is a weak acid that exhibits a color change from red to yellow as the pH transitions from acidic to neutral. Specifically, methyl red has a pH transition range of approximately 4.4 to 6.2, making it particularly useful for detecting pH changes in acidic environments. The compound is typically soluble in water, and its solution appears red in acidic conditions and yellow in neutral to alkaline conditions. Methyl red sodium salt is often employed in microbiological media and as a biological stain due to its ability to indicate pH changes. Additionally, it is important to handle this substance with care, as it can be a mild irritant. Overall, methyl red sodium salt is a valuable tool in both analytical chemistry and biological research for monitoring pH levels.

Formula: C₁₅H₁₅N₃O₂·Na

InChI: InChI=1S/C15H15N3O2.Na/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20;/h3-10H,1-2H3,(H,19,20);

InChI key: InChIKey=LMTJBYKTWFYXOK-UHFFFAOYSA-N

SMILES: N(=NC1=CC=C(N(C)C)C=C1)C2=C(C(O)=O)C=CC=C2.[Na]

Synonyms:

• 2-[4-(Dimethylamino)phenylazo]benzoic acid, sodium salt
• 2-{(E)-[4-(dimethylamino)phenyl]diazenyl}benzoate
• Benzoic acid, 2-[2-[4-(dimethylamino)phenyl]diazenyl]-, sodium salt (1:1)
• Benzoic acid, 2-[[4-(dimethylamino)phenyl]azo]-, sodium salt
• Methyl Red Sodium Crystalline
• Methyl Red, water soluble
• Sodium 2-(P-(Dimethylamino)Phenylazo)Benzoate
• o-Methyl red sodium salt
• sodium 2-{(E)-[4-(dimethylamino)phenyl]diazenyl}benzoate
• C.I. 13020~Methyl Red, sodium salt
• C.I. Acid Red 2, sodium salt

Methyl Red Sodium Salt

CAS: 845-10-3

Formula: C₁₅H₁₄N₃NaO₂

Color and Shape: Orange to Brown powder to crystal

Molecular weight: 291.29

Ref: 3B-M0424

Methyl Red sodium salt, ACS

CAS: 845-10-3

Methyl Red sodium salt is used as a pH indicator. In microbiology, it is used to make agar plates in bacteriology. Further, it is used as a coloring agent and also finds use in mouthwash, toothpaste and in cosmetics. It is also employed as a rocket propellant. In addition to this, it is used in the

Formula: C₁₅H₁₄N₃NaO₂

Molecular weight: 291.29

Ref: 02-036667

Methyl Red sodium salt

CAS: 845-10-3

Methyl red is an indicator dye that turns red in acidic solutions. It is a pH indicator, turning red under pH 4.4, yellow over pH 6.2, and orange in between those values. It is used in microbiology in the Voges-Proskauer test to identify bacteria that produce stable acids through mixed acid fermenta

Formula: C₁₅H₁₄N₃NaO₂

Color and Shape: Orange to Brown, pH4.2 (Violet Red) - pH6.2 (Brown Yellow), Powder

Molecular weight: 291.29

Ref: 02-A17455

Methyl Red sodium salt, 0.02% w/v aq. soln.

CAS: 845-10-3

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Sci

Formula: (CH₃)₂NC₆H₄NNC₆H₄CO₂Na

Molecular weight: 291.29

Ref: 02-044161

Methyl Red Sodium Salt

CAS: 845-10-3

Methyl Red Sodium Salt

Formula: C₁₅H₁₄N₃O₂Na

Purity: IND

Color and Shape: Solid

Molecular weight: 291.28

Ref: 54-OR1013877

Methyl Red sodium salt

CAS: 845-10-3

Formula: C₁₅H₁₄N₃NaO₂

Color and Shape: Solid

Molecular weight: 291.2803

Ref: IN-DA003593

Methyl Red sodium salt (C.I. 13020)

CAS: 845-10-3

Formula: C₁₅H₁₄N₃NaO₂

Color and Shape: Yellow to orange powder

Molecular weight: 291.29

Ref: 7W-GT3952

Methyl red sodium salt

CAS: 845-10-3

Formula: C₁₅H₁₄N₃NaO₂

Purity: IND

Color and Shape: Liquid

Molecular weight: 291.286

Ref: 10-F492466

Methyl Red Sodium Salt (water soluble) ACS, 95%

CAS: 845-10-3

Formula: C₁₅H₁₄N₃NaO₂

Color and Shape: Orange, Powder

Molecular weight: 291.28

Ref: SR-46985

Methyl Red Sodium Salt

Controlled Product

CAS: 845-10-3

Applications Methyl Red Sodium Salt is a dye used for pH detection. It can also be utilized for cyclodextrin films with fast solvent transport and shape-selective permeability. Dyes and metabolites.
References Villalobos, L., et al.: Adv Mater, (2017)

Formula: C₁₅H₁₅N₃NaO₂

Color and Shape: Neat

Molecular weight: 292.29

Ref: TR-M332853