1-Methyl-2-oxo-1,2-dihydropyridine-3-sulfonyl chloride CAS 1785316-68-8
| CAS No. | 1785316-68-8 |
| Molecular Formula | C6H6ClNO3S |
| Molecular Weight | 207.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Methyl-2-oxo-1,2-dihydropyridine-3-sulfonyl chloride.
1-Methyl-2-oxo-1,2-dihydropyridine-3-sulfonyl chloride (CAS 1785316-68-8), molecular formula C6H6ClNO3S and molecular weight 207.63 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 1-Methyl-2-oxo-1,2-dihydropyridine-3-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 207.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 1-Methyl-2-oxo-1,2-dihydropyridine-3-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.
Physical & Chemical Properties
| Molecular Formula | C6H6ClNO3S |
| Molecular Weight | 207.63 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 | 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2-Chloro-5-(4-fluorophenyl)pyridine (CAS 163563-10-8)
- 2-Chloro-5-fluoro-4-phenylpyridine (CAS 1807238-41-0)
- 1-Methyl-6-oxo-1,6-dihydropyridine-3-sulfonyl chloride (CAS 1492029-20-5)
- 2-Chloro-4-fluoro-3-phenylpyridine (CAS 1807273-11-5)
- 2-Iodopyrimidine-5-carbaldehyde (CAS 1461708-57-5)
- 6-Chloro-N-(m-tolyl)pyrimidin-4-amine (CAS 169286-83-3)
- 3-Bromo-DL-phenylalanine (CAS 30163-20-3)
- 2-(4-Ethynylphenoxy)acetic acid (CAS 29171-45-7)
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- Triethoxy(4-methylenehex-5-en-1-yl)silane (CAS 682743-12-0)
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