p-Rosolic acid
p-Rosolic acid (CAS 603-45-2), with the molecular formula C19H14O3 and a molecular weight of 290.31 g/mol, is a triphenylmethane dye. It is known for its use as a pH indicator and in various staining applications within microscopy. Its characteristic colour changes make it valuable in analytical chemistry and biological sample preparation.
- IUPAC
- 4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone,Aurin
- Synonyms
- Aurin4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone
pH Indicator
p-Rosolic acid functions as a pH indicator, exhibiting distinct colour transitions over a specific pH range. This property is utilized in acid-base titrations and general pH determination in laboratory settings.
Histological Staining
This compound is employed as a dye in histology and cell biology for staining biological tissues and cells. It aids in visualising cellular structures under microscopic examination.
Microscopy Reagent
As a laboratory reagent, p-Rosolic acid is used in microscopy for preparing stained slides. Its ability to colour specific components of cells and tissues enhances contrast and detail.
| Molecular weight | 290.31 |
|---|---|
| Empirical formula | C19H14O3 |
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.
| Colour Index Number | 43800 |
|---|
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 p-Rosolic acid used for?
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p-Rosolic acid is primarily used as a pH indicator and as a stain in histology and cell biology for microscopic examination of tissues and cells.
What is the CAS number and formula for p-Rosolic acid?
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The CAS number for p-Rosolic acid is 603-45-2, and its molecular formula is C19H14O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies p-Rosolic acid as a technical or research grade chemical. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
How should p-Rosolic acid be handled safely?
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p-Rosolic acid is a warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Ensure good ventilation and avoid inhaling dust.
Does TSS export p-Rosolic acid?
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Yes, Tech Serve Solutions is a global supplier and exporter of chemicals, including p-Rosolic acid, to research institutions and industries worldwide.
How can I request a sample or quote for p-Rosolic acid?
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To request a sample or a quote for p-Rosolic acid, please contact our sales department through the website or by calling our main line.
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