Phenol Red sodium salt
Phenol Red sodium salt (CAS: 34487-61-1), with the molecular formula C19H13NaO5S and a molecular weight of 376.36 g/mol, is a widely used pH indicator. This vibrant compound is essential in various laboratory applications, particularly in cell biology and cell culture. Its distinct colour change within a specific pH range makes it invaluable for monitoring experimental conditions and ensuring the optimal environment for biological assays.
- IUPAC
- Phenolsulfonephthalein sodium salt
pH Indicator
Phenol Red sodium salt serves as a sensitive pH indicator, exhibiting a distinct colour transition. It is commonly used in biological media to visually monitor pH changes, typically from yellow in acidic conditions to red in alkaline conditions.
Cell Culture Media Supplement
This compound is frequently incorporated into cell culture media. It aids researchers in detecting shifts in pH caused by cellular metabolic activity, helping to maintain the appropriate physiological environment for cell growth and viability.
Cytotoxicity and Viability Assays
Its utility extends to assays measuring cytotoxicity, proliferation, and cell viability. Phenol Red sodium salt can be an indirect indicator of metabolic state, as changes in media pH can be correlated with cellular function.
Hematology and Histology Staining
As a dye, Phenol Red sodium salt finds application in specific staining procedures within hematology and histology, contributing to the visualisation of cellular structures.
| Molecular weight | 376.36 |
|---|---|
| Empirical formula | C19H13NaO5S |
| Form | powder |
| Solubility | H2O: soluble1 mg/mL |
| Application | Suitable for use as a pH indicator. |
| Suitability | suitable for cell culturesuitable for insect cell culture |
| Melting point | 285 °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 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Quality Level | PREMIUM |
|---|---|
| Product Line | BioReagent |
| Synonym | 6.8 - 8.2, yellow to red |
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 Phenol Red sodium salt used for?
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Phenol Red sodium salt is primarily used as a pH indicator in biological and chemical applications. It is also a common component in cell culture media to monitor pH, and is suitable for use in cytotoxicity, proliferation, and viability assays, as well as certain staining procedures in hematology and histology.
What are the CAS number and chemical formula for Phenol Red sodium salt?
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The CAS number for Phenol Red sodium salt is 34487-61-1, and its chemical formula is C19H13NaO5S.
What grade and purity does Tech Serve Solutions supply for Phenol Red sodium salt?
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Tech Serve Solutions supplies Phenol Red sodium salt as a PREMIUM BioReagent. We do not represent this product as USP, BP, or EP grade.
What are the main safety considerations when handling Phenol Red sodium salt?
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Phenol Red sodium salt is classified as a Warning substance. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used. Ensure adequate ventilation and avoid inhaling dust.
Is Phenol Red sodium salt suitable for cell culture?
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Yes, Phenol Red sodium salt is explicitly listed as suitable for general cell culture and also for insect cell culture.
How is Phenol Red sodium salt supplied and exported by TSS?
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Phenol Red sodium salt is supplied as a powder. Tech Serve Solutions is a global supplier and exporter of fine chemicals, pharmaceutical intermediates, and laboratory reagents.
How can I request a quote or sample for Phenol Red sodium salt?
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To request a quote or sample for Phenol Red sodium salt, please contact our sales team through the TSS website or by calling our main line.
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