5-acetyl-4H,5H,6H,7H-thieno[3,2-c]pyridine-2-sulfonyl chloride CAS 1955515-45-3
| CAS No. | 1955515-45-3 |
| Molecular Formula | C9H10ClNO3S2 |
| Molecular Weight | 279.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-acetyl-4H,5H,6H,7H-thieno[3,2-c]pyridine-2-sulfonyl chloride 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.
5-acetyl-4H,5H,6H,7H-thieno[3,2-c]pyridine-2-sulfonyl chloride (CAS 1955515-45-3) is a high-purity analytical reference standard with the molecular formula C9H10ClNO3S2 and a molecular weight of 279.76 g/mol.
5-acetyl-4H,5H,6H,7H-thieno[3,2-c]pyridine-2-sulfonyl chloride (C9H10ClNO3S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H10ClNO3S2 |
| Molecular Weight | 279.76 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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