1,3,5-Tris(phenylethynyl)benzene CAS 118688-56-5
| CAS No. | 118688-56-5 |
| Molecular Formula | C30H18 |
| Molecular Weight | 378.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies 1,3,5-Tris(phenylethynyl)benzene (CAS 118688-56-5), a certified reference material (molecular formula C30H18, MW 378.46 g/mol) for analytical method development and quality control.
Based on its molecular formula C30H18, 1,3,5-Tris(phenylethynyl)benzene contains a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 378.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 1,3,5-Tris(phenylethynyl)benzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C30H18 |
| Molecular Weight | 378.46 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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
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Recommended Standards
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- 2-(Tert-butyl)-1-(2-(4-methoxyphenoxy)ethoxy)-4-methylbenzene (CAS 428487-03-0)
- 4,6-Dimethyl-2-((piperidin-4-ylmethyl)thio)pyrimidine (CAS 1250624-68-0)
- 1-(3-Chloro-4-fluorophenyl)-2,5-dimethyl-1H-pyrrole (CAS 1692-00-8)
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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