| CAS No. | 1935472-10-8 |
| Molecular Formula | C6H11ClN2O3S |
| Molecular Weight | 226.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
(6-methyl-4-oxo-1,4-dihydropyridazin-3-yl)methanesulfonyl chloride (C6H11ClN2O3S) contains an amide group, a sulfone group, a carboxylic acid 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies (6-methyl-4-oxo-1,4-dihydropyridazin-3-yl)methanesulfonyl chloride (CAS 1935472-10-8), a certified reference material (molecular formula C6H11ClN2O3S, MW 226.68 g/mol) for analytical method development and quality control.
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), (6-methyl-4-oxo-1,4-dihydropyridazin-3-yl)methanesulfonyl 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.
| Molecular Formula | C6H11ClN2O3S |
| Molecular Weight | 226.68 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, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |