Phenolphthalein White CAS: 77-09-8 | MF: C20H14O4 | MW: 318.32, Buy now for reliable and Reproducible results from Tristains indicators at Chemical World.
Phenolphthalein Indicator White (CAS No. 77-09-8) is a crystalline organic compound that is a phthalein, a white crystalline substance. It is commonly known that it is used to measure acid-base pH. Phenolphthalein is colorless in acidic conditions and changes from colorless to pink and then deep red in alkaline and cyanide carbonate solutions. It is colorless at a pH less than 8.5 and turns pink to deep red at a pH greater than 9.0. The molecular formula of this compound is C20H14O4, and it does not dissolve easily in water but does dissolve easily in organic solvents. Because of these characteristics, Phenolphthalein Indicator White has many applications in the fields of analytical chemistry, education, and industrial laboratories.
Applications
- Acid“Base Titrations: Usually applied to determine endpoints of titration in analytic chemistry procedures.
- Educational Demonstrations: It is ideal for teaching in an academic laboratory because it exhibits a clear and observable color shift when changing pH and when titration experiments are performed.
- Institutes of Quality Control: Used in industrial and pharmaceutical quality control testing where sensitivity and reliability are needed.
- Research Chemistry: Applied in analytical experiments involving alkaline reactions and compound behavior analysis.
Key features
- Highly Visible Transitions: Gives obviously definite color modification with pH changes.
- User-Friendly pH Detection: Sensibly detects pH variations in the pH region of 8.5 to 10.
- Versatile Usage: Applicable to both aqueous and non-aqueous systems.
- Stable and Low Maintenance: Stays stable chemically in typical laboratory storage conditions.
- Cost-Effective Performance: Provides professional-quality accuracy at a low price in the lab.
General Description
Phenolphthalein Indicator White (CAS No. 77-09-8) is a common organic indicator compound with a wide range of applications in reliable acid-base pH measurement. It is also a crystalline white powder of the phthalein dye group and its use is characterized by its regular behavior within analytical and educational labs. This indicator has a molecular weight of 318.32 g/mol and thus is given a dependable sensitivity in a variety of chemical uses. Phenolphthalein Indicator White is highly soluble in alcohol and other organic solvents at a neutral pH and therefore is compatible with a broad variety of reaction conditions where solvent permeability is necessary.
Are you looking for suppliers for high-grade indicators? This product is used by chemists, educators, and researchers from Chemical World indicator solutions to obtain reliable analytical outcomes. In cases where strict visual availability and physical reproducibility of the result are needed, Phenolphthalein Indicator White is still a crucial reagent in chemical analysis and titration. Buy Phenolphthalein Indicator White from the Chemical World because it provides reliable, precise, and repeatable staining results.
About Brand
TriStains provides a marketplace for histology and biological stains, which is comprehensive enough to encompass the peculiar requirements of laboratories specializing in Histology, Cytology, Microbiology, and Hematology. With a reputation for exceeding quality expectations, TriStains performance is outstanding, which allows for the resolution of cell and tissue components fundamental to life sciences to be clearly visualized. Each product under the TriStains series is validated for accuracy, reliability, and consistency. TriStains, which manufactures and markets stains and indicators in various packaging, offers laboratories turnkey solutions for all their staining and indicator needs, improving accuracy in every experiment.
Chemical World provides the best laboratory brands that provide a constant and reliable result for any kind of experiment. Our range of high-quality laboratory brands is complete and is available in various scientific fields. ChemieR supplies high-purity chemicals to be used in reliable laboratories, cUSP supplies certified and standard solutions which can be used right away to assess accurately, and TriStains provides high-quality histological stains and indicators to be used in order to visualize accurately. LiChrom is the provider of liquid chromatography using high-grade reagents, and Bluster is the provider of high-grade solvents used in gas chromatography. EKS focuses on electronics-grade reagents that are used in advanced and sensitive analysis. These brands assure the research, analytical, and industrial laboratories with trusted quality, consistency, and performance. To get your product details, specifications, or to seek any purchasing assistance, visit our site chemicalworlds.com or email our sales team sales@chemicalworlds.com. We are happy to service your laboratory requirements with professional and fast service.
| Alternate Names | 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone |
| Application | Phenolphthalein is a commonly used colorimetric pH indicator |
| CAS Number | 77-09-8 |
| Molecular Weight | 318.32 |
| Molecular Formula | C20H14O4 |
Phenolphthalein is a chemical that is commonly used as a colorimetric pH indicator. The compound has been observed to turn orange at pH <0, clear between pH 0-8.2, fuchsia between pH 8.2-12, and clear again at a pH above 12. It has been postulated that the mutagenic effects of Phenolphthalein at high doses can be attributed the enhancement intracellular free oxygen radicals. The compound has also been observed to induce mitotic abnormalities and micronuclei with kinetochores in vitro. In Syrian hamster embryos treated with 10-40 ?M of Phenolpthalein a significant number of chromosomal aberrations occurred at the hprt locus. On human breast cancer cells Phenolphthalein has been observed to have weak estrogenic effects.
| Appearance | Powder |
| Physical State | Solid |
| Solubility | Soluble in water (partly), chloroform (slightly), acetone, ethanol (50 mg/ml), and methanol (10 mg/ml). |
| Storage | Store at room temperature |
| Melting Point | 261-263° C (lit.) |
| Boiling Point | ~557.8° C at 760 mmHg (Predicted) |
| Density | 1.30 g/cm3 at 20 |
| Refractive Index | n20D 1.69 (Predicted) |
| IC50 | GPR55: IC50 = 6.67 µM (human) |
| Ki Data | TS: Ki= 1.2 µM (human); Thymidylate synthase: Ki= 1.4 µM (Enterococcus faecalis); Thymidylate synthase: Ki= 4.7 µM (Escherichia coli K-12); Thymidylate synthase: Ki= 4.7 µM (Lactobacillus casei) |
| pK Values | pKa: 9.7 |
SAFETY INFORMATION
| WGK Germany | 3 |
| RTECS | SM8380000 |
| PubChem CID | 4764 |
| Merck Index | 14:7243 |
| MDL Number | MFCD00005913 |
| EC Number | 201-004-7 |
| Beilstein Registry | 284423 |
| SMILES | C1=CC=C2C(=C1)C(=O)OC2(C3=CC =C(C=C3)O)C4=CC=C(C=C4)O |
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