Methylthymol Blue Sodium Salt TCI B0478

Chemical Identity

CAS No.: 1945-77-3
PubChem: CID 56973710·SID 87563510
Formula: C37H40N2Na4O13S
Molecular weight: 844.7 g/mol
Purity: >95.0%(HPLC)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: tetrasodium;2-[[3-[(E)-[3-[[carboxylatomethyl(carboxymethyl)amino]methyl]-2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene]-(2-sulfonatophenyl)methyl]-2-methyl-6-oxido-5-propan-2-ylphenyl]methyl-(carboxymethyl)amino]acetate
SMILES: CC1=C(C=C(C(=C1CN(CC(=O)O)CC(=O)[O-])[O-])C(C)C)/C(=C\2/C=C(C(=O)C(=C2C)CN(CC(=O)O)CC(=O)[O-])C(C)C)/C3=CC=CC=C3S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]
InChIKey: IZEZUWIEFNJWDU-QLIRPSIZSA-J

Rp 1.060.500,00

~~Rp 757.050,00~~ Rp 1.060.500,00

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Methylthymol Blue Sodium Salt (TCI B0478) is a chemical compound widely used as an indicator in acid-base titration reactions. This reagent plays a crucial role in analytical chemistry by helping to determine the endpoint of a chemical reaction. It is particularly valuable in laboratory settings where precise pH detection is essential. The compound changes color in response to pH variations, making it an indispensable tool for chemists and students alike. Its ability to provide clear visual signals during titration enhances the accuracy and reliability of analytical results.

The unique properties of Methylthymol Blue Sodium Salt make it a preferred choice in laboratory applications. It exhibits a distinct color change from a light blue in basic solutions to a pinkish hue in acidic environments. This sensitivity to pH changes ensures that it can be used effectively in a wide range of titration processes. Additionally, it maintains stability under specific conditions, which contributes to its long shelf life and consistent performance. Its solubility in water also simplifies its use in various experimental setups, making it a versatile reagent for both educational and research purposes.

In Indonesian laboratories, Methylthymol Blue Sodium Salt is commonly used in both educational and research settings. It is an essential component in basic and advanced chemical analysis courses, where students learn about titration techniques and pH indicators. Researchers also rely on this reagent for accurate and reproducible results in their experiments. Its availability and reliability make it a popular choice among laboratory professionals in Indonesia, supporting both teaching and scientific inquiry.

TCI brochures (PDF)

Titration Reagents and TLC Stains 2026-05-07 · p. 8

Related TCI products

Acid-base titration is a common application where Methylthymol Blue Sodium Salt is used to detect the endpoint of neutralization reactions due to its distinct color change in response to pH variations.
Educational laboratories utilize this reagent to teach students about pH indicators and titration techniques, providing hands-on experience in analytical chemistry.
Environmental analysis often employs this compound to assess water and soil pH levels, ensuring accurate measurements in ecological studies.
Industrial quality control processes benefit from its use in monitoring chemical reactions, ensuring product consistency and safety.
Research laboratories rely on this reagent for precise pH detection in complex chemical mixtures, supporting advanced analytical investigations.

Brand	TCI
CAS number	1945-77-3
Molecular formula	—
Purity	—
Category	Analytical Chemistry > Analytical Reagents > Titration Reagents
Pack sizes	Available in various quantities as per standard laboratory supply options
Physical form	Sodium salt of methylthymol blue in powder form
Storage	Store in a cool, dry place away from direct sunlight and moisture

Methylthymol Blue Sodium Salt should be stored in a cool, dry environment to maintain its stability and effectiveness. It is recommended to keep the reagent in a sealed container to prevent exposure to moisture and air, which could affect its performance. Proper labeling of storage containers is essential to ensure safe handling and prevent accidental contamination. In laboratory settings, it is important to use appropriate personal protective equipment when handling this chemical. Regular inspection of storage conditions ensures that the reagent remains in optimal condition for use. Avoid storing near incompatible substances to maintain a safe laboratory environment.

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