Thymol Blue Sodium Salt TCI S0049

Chemical Identity

CAS No.: 62625-21-2
PubChem: CID 3463859·SID 87575674
Formula: C27H29NaO5S
Molecular weight: 488.6 g/mol

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: sodium 2-[(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-(2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonate
SMILES: CC1=CC(=C(C=C1C(=C2C=C(C(=O)C=C2C)C(C)C)C3=CC=CC=C3S(=O)(=O)[O-])C(C)C)O.[Na+]
InChIKey: OCMIKNBSIRSUPI-UHFFFAOYSA-M

Rp 505.050,00

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Thymol Blue Sodium Salt (TCI S0049 62625-21-2) is a chemical reagent widely used in analytical chemistry, particularly in titration processes. It functions as a pH indicator, changing color in response to variations in the pH of a solution. This property makes it an essential tool for identifying the endpoint of chemical reactions, especially in acid-base titrations. Its reliability and accuracy in detecting subtle pH changes have made it a staple in both educational and research settings.

The compound is valued for its stability under controlled conditions and its clear, distinct color change from blue to red as pH levels shift. These characteristics ensure consistent and reproducible results, which are crucial in laboratory experiments. Additionally, its lack of preservatives and high clarity make it safe and suitable for a wide range of chemical analyses. The ease of use and predictable behavior further enhance its appeal for both novice and experienced chemists.

In Indonesian laboratories, Thymol Blue Sodium Salt is commonly found in high schools, universities, and research institutions. It is frequently used in chemistry courses and practical sessions to teach students about pH indicators and titration techniques. Its presence in these environments underscores its importance in both academic and professional chemical analysis.

TCI brochures (PDF)

Titration Reagents and TLC Stains 2026-05-07 · p. 2

Related TCI products

Acid-base titration analysis, where it detects the endpoint by changing color with pH shifts.
Educational experiments in high schools and universities to teach students about pH indicators and titration.
Research applications in analytical chemistry for precise measurement of acid and base concentrations.
Quality control testing in industrial settings to ensure product consistency and compliance.
Environmental analysis to assess the pH levels of water and soil samples in ecological studies.

Brand	TCI
CAS number	62625-21-2
Molecular formula	—
Purity	—
Category	Analytical Chemistry > Analytical Reagents > Titration Reagents
Pack sizes	Available in various quantities as per supplier specifications
Physical form	Solid powder
Storage	Store in a cool, dry place away from direct sunlight

Thymol Blue Sodium Salt should be stored in a cool, dry environment to maintain its chemical stability. It is recommended to use airtight containers to prevent moisture absorption and contamination. Due to its sensitivity to pH changes, it should be kept away from strong acids or bases that could alter its properties. Proper labeling of containers is essential to ensure safe handling and prevent accidental misuse. In laboratory settings, it is important to use appropriate personal protective equipment when handling this reagent. Regular monitoring of storage conditions ensures the reagent remains effective for analytical use.

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