2-Chloro-4'-ethynyl-1,1'-biphenyl CAS 56917-31-8
| CAS No. | 56917-31-8 |
| Molecular Formula | C14H9Cl |
| Molecular Weight | 212.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Chloro-4'-ethynyl-1,1'-biphenyl (CAS 56917-31-8) is a high-purity analytical reference standard with the molecular formula C14H9Cl and a molecular weight of 212.67 g/mol.
Based on its molecular formula C14H9Cl, 2-Chloro-4'-ethynyl-1,1'-biphenyl contains chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 212.67 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 2-Chloro-4'-ethynyl-1,1'-biphenyl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H9Cl |
| Molecular Weight | 212.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 2-Chloro-3-(3,5-dimethoxyphenyl)-1-propene (CAS 951891-42-2)
- 2-Chloro-4-ethynyl-1,1'-biphenyl (CAS 56917-41-0)
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