4-Methoxypyridine-3-sulfonamide CAS 1229666-20-9
| CAS No. | 1229666-20-9 |
| Molecular Formula | C6H8N2O3S |
| Molecular Weight | 188.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Methoxypyridine-3-sulfonamide is closely related to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Methoxypyridine-3-sulfonamide (CAS 1229666-20-9), molecular formula C6H8N2O3S and molecular weight 188.20 g/mol, is a CATO reference standard with documented purity and traceability.
4-Methoxypyridine-3-sulfonamide (C6H8N2O3S) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O3S |
| Molecular Weight | 188.20 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.) | 1990 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methoxypyridine Standards
- 6-Methoxypyridine-2-sulfonamide (CAS 1342957-75-8)
- 5-Methoxypyridine-3-sulfonamide (CAS 1553088-23-5)
- 2-methoxypyridine-3-sulfonamide (CAS 1566061-98-0)
- 6-Methoxypyridine-3-sulfonic acid amide (CAS 856955-32-3)
- 4-Methoxypyridine-3-sulfonyl fluoride (CAS 2137698-57-6)
- 1,1'-(4-Methoxypyridine-2,6-diyl)diethanone (CAS 1250445-92-1)
- 1,1'-(6-Methoxypyridine-2,4-diyl)bis(ethan-1-one) (CAS 1393570-04-1)
- Methyl 4-methoxypyridine-2-carboxylate 1-oxide (CAS 86251-47-0)
Recommended Standards
- 4-(Hydroxymethyl)benzenesulfonic acid (CAS 122855-96-3)
- 1-(Furan-2-yl)-2-(methylsulfonyl)ethanone (CAS 123456-25-7)
- 4-(2-Fluoropyridin-3-yl)-2-methylpyridine (CAS 1227176-80-8)
- N-(3-Hydroxypyridin-4-yl)methanesulfonamide (CAS 1243287-60-6)
- 2-Fluoropent-4-enoic acid (CAS 3885-23-2)
- 3-(3-(tert-Butyl)-2-((1-methyl-1H-1,2,4-triazol-5-yl)methoxy)pyrazolo[1,5-d][1,2,4]triazin-7-yl)-5-methylisoxazole (CAS 783331-24-8)
- (R)-5-(Pyrrolidine-1-carbonyl)pyrrolidin-2-one (CAS 110958-18-4)
- Neostigmine Impurity 23 (CAS 463-72-9)
- 3-Amino-4,8-dihydro-1,8-naphthyridin-2(3H)-one (CAS 847684-77-9)
- Empagliflozin impurity 327 (CAS CATO-C4X-1065327)
- 1-Amino-4,8-dihydroxy-5-(isopropylamino)anthracene-9,10-dione (CAS 69093-18-1)
- (4-((2,5-Dihydro-1H-pyrrol-1-yl)methyl)phenyl)(2-fluorophenyl)methanone (CAS 898764-40-4)
- Methyl 4'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1'-biphenyl]-3-carboxylate (CAS 1256358-85-6)
- Tripeptide-10 citrulline (CAS 960531-53-7)
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