trans-1,2-Di(2-thienyl)ethylene CAS 13640-78-3
| CAS No. | 13640-78-3 |
| Molecular Formula | C10H8S2 |
| Molecular Weight | 192.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 192.30 g/mol gives trans-1,2-Di(2-thienyl)ethylene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
trans-1,2-Di(2-thienyl)ethylene (CAS 13640-78-3) is a high-purity analytical reference standard with the molecular formula C10H8S2 and a molecular weight of 192.30 g/mol.
trans-1,2-Di(2-thienyl)ethylene (C10H8S2) contains sulfur-containing functionality, an aromatic ring 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
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 | C10H8S2 |
| Molecular Weight | 192.30 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Sulfur Atoms | 2 |
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- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
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