| CAS No. | 1391053-18-1 |
| Molecular Formula | C22H26O8S |
| Molecular Weight | 450.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Ethyl 2-ethoxy-5-(4-ethoxy-3-ethoxycarbonylphenyl)sulfonylbenzoate (CAS 1391053-18-1) is a high-purity analytical reference standard with the molecular formula C22H26O8S and a molecular weight of 450.50 g/mol.
Structurally, Ethyl 2-ethoxy-5-(4-ethoxy-3-ethoxycarbonylphenyl)sulfonylbenzoate (C22H26O8S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 450.50 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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), Ethyl 2-ethoxy-5-(4-ethoxy-3-ethoxycarbonylphenyl)sulfonylbenzoate 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 | C22H26O8S |
| Molecular Weight | 450.50 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1991 |
| Sulfur Atoms | 1 |