1-(Phenylethynyl)-4-styrylbenzene CAS 21850-30-6
| CAS No. | 21850-30-6 |
| Molecular Formula | C22H16 |
| Molecular Weight | 280.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-(Phenylethynyl)-4-styrylbenzene (CAS 21850-30-6), a certified reference material (molecular formula C22H16, MW 280.36 g/mol) for analytical method development and quality control.
1-(Phenylethynyl)-4-styrylbenzene (C22H16) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C22H16 |
| Molecular Weight | 280.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Phenylethynyl Standards
- 2-(Phenylethynyl)-9H-fluoren-9-one (CAS 158044-50-9)
- 1-(5-(Phenylethynyl)pyrimidin-4-yl)piperidin-4-ol (CAS 393855-91-9)
- 2'-(Phenylethynyl)-[1,1'-biphenyl]-2-carbaldehyde (CAS 1386987-31-0)
- 1,3-Bis(phenylethynyl)benzene (CAS 13141-36-1)
- 1,4-Bis(phenylethynyl)benzene (CAS 1849-27-0)
- 9-(Phenylethynyl)phenanthrene (CAS 87682-44-8)
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- 1-Boc-4-Phenylethynyl-piperidine (CAS 669015-08-1)
Recommended Standards
- 1-(4-Methoxyphenoxy)-3-(4-methylpiperazin-1-yl)propan-2-ol (CAS 300394-09-6)
- 1,2-Di(naphthalen-2-yl)ethene (CAS 2042-99-1)
- 1-(4-Methoxy-3-(3-methoxypropoxy)phenyl)-3-methylbutan-1-one (CAS 919995-27-0)
- 1,3-Bis(2,4-dimethylphenyl)propane-1,3-dione (CAS 937602-24-9)
- 2-((4-Chlorophenyl)amino)-1-phenylethan-1-one (CAS 53181-22-9)
- 5-Bromo-2-methyl-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 1254319-63-5)
- [4-(aminomethyl)tetrahydropyran-4-yl]methanol (CAS 959238-22-3)
- Cefaclor Impurity 41 (CAS CATO-C4X-127041)
- 5-(1-(Methylthio)ethyl)-1,3,4-thiadiazol-2-amine (CAS 383130-64-1)
- 4-(4-Methyl-3-pyridyl)benzonitrile (CAS 1187168-21-3)
- 1-Bromo-4-chloro-5-methoxy-2-methylbenzene (CAS 1208077-43-3)
- tert-Butyl 5-oxo-1,4-diazepane-1-carboxylate (CAS 190900-21-1)
- trans-3-Methyl-3-Heptane (CAS 22768-18-9)
- Semaglutide Impurity 2 (CAS CATO-C4X-22262)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com