2-Methoxy-3-(methylsulfonyl)pyridine CAS 1956331-21-7
| CAS No. | 1956331-21-7 |
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Methoxy-3-(methylsulfonyl)pyridine (C7H9NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 2-Methoxy-3-(methylsulfonyl)pyridine (CAS 1956331-21-7), a certified reference material (molecular formula C7H9NO3S, MW 187.22 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Methoxy-3-(methylsulfonyl)pyridine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 2-Methoxy-4-(methylsulfonyl)pyridine (CAS 1268520-81-5)
- 2-Methoxy-N-(5-methyl-1,3,4-thiadiazol-2-yl)acetamide (CAS 132214-40-5)
- N-Methoxy-N,4-dimethyl-1,2,3-thiadiazole-5-carboxamide (CAS 231297-63-5)
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- 6-Methoxy-2,8-dimethylquinoline (CAS 1202655-65-9)
- 5-Methoxy-N-methylnaphthalen-2-amine (CAS 1630816-63-5)
Recommended Standards
- [4-(1,3-Dioxolan-2-yl)-1,3-thiazol-2-yl]methanol (CAS 1934407-64-3)
- (4-Aminophenyl)methanesulfonic acid (CAS 6387-28-6)
- 1-(1,1-Dioxidothiomorpholino)prop-2-yn-1-one (CAS 1856821-85-6)
- (4-Oxo-thiazolidin-2-ylidene)-acetic acid ethyl ester (CAS 24146-36-9)
- (2S,4S)-4-(tert-Butoxy)-1-isopropylpyrrolidine-2-carboxylicacid (CAS 1263078-26-7)
- 1-(4-Chloro-3-methylphenyl)-5-ethyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1326844-91-0)
- 4-[(2-chlorophenyl)methylidene]-1,2,3,4-tetrahydroacridine-9-carboxylic acid (CAS 379729-48-3)
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- Pomalidomide Impurity 34 Triethylamine Salt (CAS CATO-C4X-135434)
- N-[2-Nitro-4-(trifluoromethyl)phenyl]-1,3-propanediamine hydrochloride (CAS 941591-09-9)
- 2-Fluoro-1,3-dimethoxybenzene (CAS 195136-68-6)
- 6-Chloro-2-(5-chlorothiophen-2-yl)quinoline-4-carboxylic acid (CAS 897560-10-0)
- 5-Bromo-2-(3-(trifluoromethyl)phenyl)-2H-1,2,3-triazole-4-carboxylic acid (CAS 1708401-08-4)
- Anorexigenic Peptide (CAS 69275-10-1)
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