| CAS No. | 1781261-93-5 |
| Molecular Formula | C26H24S2 |
| Molecular Weight | 400.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Owing to sulfur-containing functionality, a polycyclic aromatic system, 2-Hexyl-7-phenylbenzo[b]benzo[4,5]thieno[2,3-d]thiophene is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 400.60 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
2-Hexyl-7-phenylbenzo[b]benzo[4,5]thieno[2,3-d]thiophene (CAS 1781261-93-5), molecular formula C26H24S2 and molecular weight 400.60 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 2-Hexyl-7-phenylbenzo[b]benzo[4,5]thieno[2,3-d]thiophene 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.
| Molecular Formula | C26H24S2 |
| Molecular Weight | 400.60 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1994 |
| Sulfur Atoms | 2 |