Bromocresol Purple sodium salt
Bromocresol Purple sodium salt (CAS: 62625-30-3) is a chemical compound with the formula C21H15Br2NaO5S and a molecular weight of 562.20 g/mol. This indicator grade dye is primarily utilised as a pH indicator, changing colour across the pH range of 5.2 to 6.8, from yellow-green to purple. Its applications extend to analytical chemistry and biological staining, making it a valuable reagent in laboratory settings.
- IUPAC
- 5′,5″-Dibromo-o-cresolsulfonphthalein sodium salt
- Synonyms
- 5′,5″-Dibromo-o-cresolsulfonphthalein sodium salt
pH Indicator
Bromocresol Purple sodium salt serves as a visual pH indicator. It exhibits a distinct colour change from yellow-green in acidic conditions to purple in alkaline conditions, within the pH range of 5.2 to 6.8.
Analytical Reagent
This compound is employed in various analytical procedures, including titrations, where its colour transition aids in determining the endpoint. Its consistent performance makes it a reliable choice for quantitative analysis.
Biological Staining
In histology and cell biology, Bromocresol Purple sodium salt can be used as a stain. It assists in visualising cellular structures and tissues, contributing to microscopic examination and research.
| Molecular weight | 562.20 |
|---|---|
| Empirical formula | C21H15Br2NaO5S |
| Grade | indicator grade |
| Density | 0.991 g/mL at 25 °C |
| Concentration | 0.04 wt. % in H2O |
| Composition | Dye content, 90% |
| Melting point | 255 °C (dec.)(lit.) |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Absorption | extinction/375-381 nm, 0.1 M NaOH ≥7000extinction/587-591 nm, 0.1 M NaOH ≥47000λmax 379 nmλmax 585 nm (2nd) |
|---|---|
| Ph Range | 5.2 - 6.8, yellow-green to purple |
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.
What is Bromocresol Purple sodium salt used for?
+
Bromocresol Purple sodium salt is primarily used as a pH indicator, in analytical chemistry for titrations, and as a stain in biological and histological applications.
What is the CAS number and formula for Bromocresol Purple sodium salt?
+
The CAS number for Bromocresol Purple sodium salt is 62625-30-3, and its empirical formula is C21H15Br2NaO5S.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Bromocresol Purple sodium salt in indicator grade, with a dye content of 90%. We do not represent this product as USP, BP, or EP grade.
How should Bromocresol Purple sodium salt be handled?
+
Handle Bromocresol Purple sodium salt with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. It is classified as an irritant (H315, H319, H335) and requires careful handling to avoid dust inhalation and contact with skin and eyes.
Is Bromocresol Purple sodium salt a controlled substance?
+
The provided data does not indicate that Bromocresol Purple sodium salt is a controlled substance.
How is Bromocresol Purple sodium salt packed, shipped, and exported?
+
Bromocresol Purple sodium salt is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions, adhering to all relevant shipping regulations for chemical substances.
How can I request a quote or sample for Bromocresol Purple sodium salt?
+
To request a quote or sample of Bromocresol Purple sodium salt, please contact our sales team through the Tech Serve Solutions website or by phone.
▶ Related products
(−)-Curcumol
C15H24O2
Cell Biology
(±) Clopidogrel hydrogensulfate
Cell Biology
(±)-L-Alliin
C6H11NO3S
Cell Biology
(±)-2-Amino-4-phosphonobutyric acid
C4H10NO5P
Cell Biology
(±)-2-Methylarachidonoyl-2′-fluoroethylamide
C23H38NOF
Cell Biology
(±)-3,4-Methylenedioxy-N-ethylamphetamine hydrochloride
Cell Biology
(±)-3,4-Methylenedioxyamphetamine hydrochloride
Cell Biology
(±)-3,4-Methylenedioxymethamphetamine hydrochloride
Cell Biology
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis