Tetrabromophenol Blue

CAS 4430-25-5C19H6Br8O5SCell Biology

Tetrabromophenol Blue (CAS: 4430-25-5), a complex organic compound with the formula C19H6Br8O5S and a molecular weight of 985.54 g/mol, is a vital reagent in laboratory settings. It functions as a pH indicator and is particularly useful in various staining procedures within cell biology, haematology, and histology. Its distinct colour changes make it valuable for specific analytical applications.

IUPAC: 3,3′,3″,4,5,5′,5″,6-Octabromophenolsulfonphthalein
Synonyms: 3,3′,3″,4,5,5′,5″,6-Octabromophenolsulfonphthalein

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Tetrabromophenol Blue (C19H6Br8O5S) — chemical structure, CAS 4430-25-5; Life Science, fine chemical supplied by Tech Serve Solutions

Cell BiologyHematology and HistologyStains & DyesA to ZStains and DyesT-U-V

01 /Applications

pH Indicator

Tetrabromophenol Blue serves as a pH indicator, exhibiting distinct colour transitions over a specific pH range. Its absorption spectrum, with lambda max values at 388 nm and 605 nm, facilitates accurate visual or spectrophotometric pH determination.

Histological Staining

This compound is employed in histological and haematological staining techniques. Its properties allow it to selectively stain cellular components, aiding in microscopic examination and diagnosis.

Cell Biology Reagent

Within cell biology, Tetrabromophenol Blue is utilised for various research applications. Its use in staining and as a pH indicator contributes to understanding cellular processes and environments.

02 /Properties

Molecular weight	985.54
Empirical formula	C19H6Br8O5S
Melting point	204 °C (dec.)(lit.)

03 /Safety & handling

Protective equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Water hazard class (WGK, DE)	3

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

4430-25-5

MDL number

MFCD00005876

PubChem substance

24851906

Beilstein registry

378438

05 /Additional specifications

Absorption	λmax 388 nm (2nd)λmax 605 nmextinction/606-616 nm, ethanol and water ≥55000

06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Tetrabromophenol Blue primarily used for?

Tetrabromophenol Blue is primarily used as a pH indicator and as a stain in cell biology, haematology, and histology.

What are the CAS number and formula for Tetrabromophenol Blue?

The CAS number for Tetrabromophenol Blue is 4430-25-5, and its empirical formula is C19H6Br8O5S.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Tetrabromophenol Blue for research purposes. The specific grade and purity are technical/research grade. We do not represent this product as USP, BP, or EP grade.

How should Tetrabromophenol Blue be handled safely?

Handle Tetrabromophenol Blue with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It is classified with WGK Germany 3, indicating a high hazard to water.

How is Tetrabromophenol Blue shipped and exported?

Tech Serve Solutions, as a specialist global supplier and exporter since 1998, ships and exports Tetrabromophenol Blue in compliance with international regulations for chemical transport.