Bromophenol Blue TCI B0631

Chemical Identity

CAS No.: 115-39-9
PubChem: CID 8272·SID 87563639
Formula: C19H10Br4O5S
Molecular weight: 670.0 g/mol
Reference databases: ChEBI·ChemSpider·ECHA·Wikipedia

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 2,6-dibromo-4-[3-(3,5-dibromo-4-hydroxyphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]phenol
SMILES: C1=CC=C2C(=C1)C(OS2(=O)=O)(C3=CC(=C(C(=C3)Br)O)Br)C4=CC(=C(C(=C4)Br)O)Br
InChIKey: UDSAIICHUKSCKT-UHFFFAOYSA-N

Rp 900.900,00

~~Rp 645.750,00~~ Rp 900.900,00

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Berat 1g 25g

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Bromophenol Blue is a widely used chemical indicator in analytical chemistry, particularly in titration processes. It is commonly employed in laboratories to determine the endpoint of acid-base titrations due to its distinct color change. This reagent exhibits a yellowish-blue color that shifts to yellow when exposed to hydroxide ions (OH⁻), making it highly visible and useful for identifying reaction endpoints. Its role in analytical chemistry is critical, as it enables precise and reliable measurements in various experimental setups.

The properties of Bromophenol Blue that make it a preferred choice include its high sensitivity to pH changes and its stability under certain conditions. It is known for its clear color transition, which allows for accurate and easy detection of titration endpoints. Additionally, its chemical stability ensures that it remains effective over time, reducing the need for frequent replacements. These characteristics make it a reliable tool for both educational and research purposes in laboratory settings.

In Indonesian laboratories, Bromophenol Blue is extensively used in both educational and research contexts. It is a standard reagent in high school and university laboratory curricula, where it is employed to teach students about titration techniques. Its availability in the local market ensures that it is accessible to researchers and educators, supporting a wide range of chemical experiments and analytical procedures.

TCI brochures (PDF)

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

Related TCI products

Acid-base titration analysis due to its distinct pH-sensitive color change that clearly indicates the endpoint.
Educational experiments in high school and university laboratories to teach titration techniques and pH measurement.
Research applications in analytical chemistry where accurate and reliable endpoint detection is required.
Quality control testing in industrial settings to ensure the accuracy of chemical processes.
Environmental analysis for determining the pH of water samples and assessing contamination levels.

Brand	TCI
CAS number	115-39-9
Molecular formula	—
Purity	—
Category	Analytical Chemistry > Analytical Reagents > Titration Reagents
Pack sizes	Available in various quantities as per standard laboratory reagent packaging
Physical form	Solid powder
Storage	Store in a cool, dry place away from direct sunlight and moisture

Bromophenol Blue should be stored in a cool, dry place, away from direct sunlight and moisture to maintain its chemical stability. It is recommended to use airtight containers to prevent exposure to humidity and contaminants. Proper labeling of storage containers is essential for safe handling and identification. Laboratory personnel should wear appropriate personal protective equipment when handling this reagent. While it is generally stable under normal storage conditions, it should be kept out of reach of children and not used in environments with high humidity or extreme temperatures. Regular inspection of storage conditions ensures the reagent remains effective for its intended use.

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