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CAS 845-10-3

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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
  • See more synonyms
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Found 10 products.
  • Methyl Red sodium salt, ACS

    CAS:
    <p>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 </p>
    Formula:C15H14N3NaO2
    Molecular weight:291.29

    Ref: 02-036667

    25g
    39.00€
    100g
    80.00€
  • Methyl Red sodium salt

    CAS:
    <p>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</p>
    Formula:C15H14N3NaO2
    Color and Shape:Orange to Brown, pH4.2 (Violet Red) - pH6.2 (Brown Yellow), Powder
    Molecular weight:291.29

    Ref: 02-A17455

    25g
    33.00€
    100g
    To inquire
    500g
    182.00€
  • Methyl Red sodium salt, 0.02% w/v aq. soln.

    CAS:
    <p>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</p>
    Formula:(CH3)2NC6H4NNC6H4CO2Na
    Molecular weight:291.29

    Ref: 02-044161

    100ml
    To inquire
    500ml
    57.00€
  • Methyl Red Sodium Salt

    CAS:
    Formula:C15H14N3NaO2
    Color and Shape:Solid
    Molecular weight:291.2803

    Ref: IN-DA003593

    5g
    25.00€
    10g
    30.00€
    15g
    39.00€
    25g
    40.00€
    50g
    66.00€
    100g
    67.00€
    500g
    184.00€
  • Methyl Red sodium salt (C.I. 13020)

    CAS:
    Formula:C15H14N3NaO2
    Color and Shape:Yellow to orange powder
    Molecular weight:291.29

    Ref: 7W-GT3952

    25g
    22.00€
    100g
    63.00€
    250g
    133.00€
    500g
    243.00€
  • Methyl Red Sodium Salt

    CAS:
    Methyl Red Sodium Salt
    Purity:IND
    Molecular weight:291.28g/mol

    Ref: 54-OR1013877

    25g
    32.00€
    100g
    55.00€
    10kg
    2,501.00€
    500g
    180.00€
    2.5kg
    725.00€
  • Methyl Red Sodium Salt

    CAS:
    Formula:C15H14N3NaO2
    Color and Shape:Orange to Brown powder to crystal
    Molecular weight:291.29

    Ref: 3B-M0424

    1g
    22.00€
    25g
    69.00€
  • Methyl red sodium salt

    CAS:
    Formula:C15H14N3NaO2
    Purity:IND
    Color and Shape:Liquid, No data available.
    Molecular weight:291.286

    Ref: 10-F492466

    1kg
    272.00€
    25g
    29.00€
    100g
    71.00€
    250g
    107.00€
    500g
    148.00€
  • Methyl Red Sodium Salt (water soluble) ACS, 95%

    CAS:
    Formula:C15H14N3NaO2
    Color and Shape:Orange, Powder
    Molecular weight:291.28

    Ref: SR-46985

    25g
    17.00€
    25kg
    2,399.00€
    500g
    55.00€
  • Methyl Red Sodium Salt

    Controlled Product
    CAS:
    <p>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.<br>References Villalobos, L., et al.: Adv Mater, (2017)<br></p>
    Formula:C15H15N3NaO2
    Color and Shape:Neat
    Molecular weight:292.29

    Ref: TR-M332853

    5g
    89.00€
    25g
    115.00€
    50g
    160.00€