1,5-Diethynyl-2,4-dimethylbenzene CAS 1379822-09-9
| CAS No. | 1379822-09-9 |
| Molecular Formula | C12H10 |
| Molecular Weight | 154.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1,5-Diethynyl-2,4-dimethylbenzene is closely related to an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1,5-Diethynyl-2,4-dimethylbenzene (CAS 1379822-09-9) is a high-purity analytical reference standard with the molecular formula C12H10 and a molecular weight of 154.21 g/mol.
Based on its molecular formula C12H10, 1,5-Diethynyl-2,4-dimethylbenzene contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 154.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,5-Diethynyl-2,4-dimethylbenzene 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 | C12H10 |
| Molecular Weight | 154.21 g/mol |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Diethynyl Standards
- 1,2-diethynyl-4,5-dimethylbenzene (CAS 46037-61-0)
- 1,4-Diethynyl-2,5-dimethylbenzene (CAS 75867-45-7)
- 1,5-Diethynyl-2,4-difluorobenzene (CAS 1379822-11-3)
- 1,4-Diethynyl-2,3-difluorobenzene (CAS 1430403-93-2)
- 1,4-Diethynyl-2,5-difluorobenzene (CAS 156016-23-8)
- 1,4-Diethynyl-2-fluorobenzene (CAS 137000-66-9)
- 1,2-Diethynyl-3-fluorobenzene (CAS 412041-38-4)
- 1,2-Diethynyl-4-fluorobenzene (CAS 336106-79-7)
Recommended Standards
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- 1,4-Bis((prop-2-yn-1-yloxy)methyl)benzene (CAS 18473-19-3)
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