| CAS No. | 1003593-65-4 |
| Molecular Formula | C18H10N4O4S4 |
| Molecular Weight | 474.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 4,8-Bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1H,3H-benzo[1,2-c:4,5-c']bis([1,2,5]thiadiazole) is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,8-Bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1H,3H-benzo[1,2-c:4,5-c']bis([1,2,5]thiadiazole) (CAS 1003593-65-4), molecular formula C18H10N4O4S4 and molecular weight 474.56 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H10N4O4S4, 4,8-Bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1H,3H-benzo[1,2-c:4,5-c']bis([1,2,5]thiadiazole) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 474.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 4,8-Bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-1H,3H-benzo[1,2-c:4,5-c']bis([1,2,5]thiadiazole) 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 | C18H10N4O4S4 |
| Molecular Weight | 474.56 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 4 |