Pyridin-2-ylmethanesulfonyl chloride CAS 540523-41-9
| CAS No. | 540523-41-9 |
| Molecular Formula | C6H6ClNO2S |
| Molecular Weight | 191.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyridin-2-ylmethanesulfonyl chloride (CAS 540523-41-9), a certified reference material (molecular formula C6H6ClNO2S, MW 191.64 g/mol) for analytical method development and quality control.
Structurally, Pyridin-2-ylmethanesulfonyl chloride (C6H6ClNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 191.64 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), Pyridin-2-ylmethanesulfonyl 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 | C6H6ClNO2S |
| Molecular Weight | 191.64 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.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Pyridin Standards
- Pyridin-4-ylmethanesulfonyl chloride (CAS 130820-88-1)
- Pyridin-3-ylmethanesulfonyl chloride (CAS 159290-96-7)
- 3-Ethyl-1-(pyridin-2-yl)pentan-2-one (CAS 1039892-42-6)
- N-(pyridin-2-ylmethyl)piperidin-4-amine (CAS 1184521-60-5)
- (1-(Pyridin-2-yl)piperidin-3-yl)methanamine (CAS 1202050-45-0)
- N1-(pyridin-2-yl)cyclohexane-1,4-diamine (CAS 1247177-27-0)
- (4-(Pyridin-2-yl)piperidin-4-yl)methanamine (CAS 1501149-78-5)
- 1-(Pyridin-3-ylmethyl)piperidin-4-amine (CAS 160357-88-0)
Recommended Standards
- N-Chlorobenzenesulfonamide (CAS 80-16-0)
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- Celecoxib Impurity 35 (CAS 98-64-6)
- 3'-Fluoro-4'-methyl-[1,1'-biphenyl]-3-carbaldehyde (CAS 885964-68-1)
- 1-(2,5-Dichlorophenyl)-3-(3,4-dichlorophenyl)urea (CAS 13142-50-2)
- 2-((3-Chloropyrazin-2-yl)amino)-2-phenylethan-1-ol (CAS 1492628-35-9)
- Vazegepant Impurity 10 (CAS CATO-C4X-320010)
- 2,2,2-Trifluoro-N-(4-formyl-2-iodophenyl)acetamide (CAS 774238-73-2)
- 4-Methoxy-3-methylbenzoic Acid (CAS 6880-04-2)
- 2-(Piperazin-1-yl)-N-(pyridin-4-yl)acetamide (CAS 682802-94-4)
- 2,3-Dihydrofuro[2,3-b]quinoline (CAS 14694-19-0)
- 2,6-Dibromo-4-(difluoromethoxy)phenol (CAS 1806293-59-3)
- Palmitoyl Tripeptide-1 HCl (CAS 2757690-14-3)
Why CATO?
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