6-Chloro-2-methylpyridine-3-sulfonyl chloride CAS 889944-74-5
| CAS No. | 889944-74-5 |
| Molecular Formula | C6H5Cl2NO2S |
| Molecular Weight | 226.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Chloro-2-methylpyridine-3-sulfonyl chloride (CAS 889944-74-5), molecular formula C6H5Cl2NO2S and molecular weight 226.08 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H5Cl2NO2S, 6-Chloro-2-methylpyridine-3-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 226.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 6-Chloro-2-methylpyridine-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 | C6H5Cl2NO2S |
| Molecular Weight | 226.08 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-6-methylpyridine-3-sulfonyl chloride (CAS 1208081-60-0)
- 2-Chloro-4-methylpyridine-3-sulfonyl chloride (CAS 1208081-91-7)
- 2-Chloro-5-methylpyridine-3-sulfonyl chloride (CAS 1208081-98-4)
- 2-Chloro-6-methyl-4-pyridinesulfonyl chloride (CAS 1211527-22-8)
- 5-Chloro-6-methylpyridine-2-sulfonyl Chloride (CAS 1279213-03-4)
- 5-Chloro-2-methylpyridine-3-sulfonyl chloride (CAS 1515362-51-2)
- 4-Chloro-3-(2-chloroethyl)-2-oxo-2,3-dihydrothiazole-5-carbaldehyde (CAS 929413-16-1)
- 6-Chloro-4-methylpyridine-3-sulfonyl Chloride (CAS 889944-76-7)
Recommended Standards
- 5-borono-1-naphthoic acid (CAS 216060-11-6)
- 6-Chloro-5-methyl-pyridine-3-sulfonyl chloride (CAS 37105-10-5)
- 4-Amino-3-chlorobenzene-1-sulfonyl chloride (CAS 78957-18-3)
- Ethyl 3,4-dichloroisothiazole-5-carboxylate (CAS 69376-25-6)
- 5-Hydroxy-N,N,2-trimethylbenzamide (CAS 1243371-16-5)
- 1-Chloro-2-methyl-2-propanol (CAS 558-42-9)
- n-(2-Phenoxyethyl)piperidin-4-amine dihydrochloride (CAS 1334147-70-4)
- Ethyl (1R,2R)-2-(2-(trifluoromethyl)phenyl)cyclopropane-1-carboxylate (CAS 2241138-40-7)
- Mal-L-PA-NH-Boc (CAS 1491152-23-8)
- 2-Acetamido-9,10-dioxo-9,10-dihydroanthracen-1-yl acetate (CAS 84612-43-1)
- 4-Cyano-2,5-dibromobenzenesulfonyl chloride (CAS 1807277-02-6)
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