2-methyl-5-sulfamoylpyridine-3-carboxylic acid CAS 1803608-92-5
| CAS No. | 1803608-92-5 |
| Molecular Formula | C7H8N2O4S |
| Molecular Weight | 216.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-methyl-5-sulfamoylpyridine-3-carboxylic acid (CAS 1803608-92-5), a certified reference material (molecular formula C7H8N2O4S, MW 216.21 g/mol) for analytical method development and quality control.
2-methyl-5-sulfamoylpyridine-3-carboxylic acid (C7H8N2O4S) 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).
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 | C7H8N2O4S |
| Molecular Weight | 216.21 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related methyl Standards
- methyl 5-sulfamoylpyridine-3-carboxylate (CAS 1315368-60-5)
- methyl 6-sulfamoylpyridine-2-carboxylate (CAS 75903-52-5)
- 5-Sulfamoylpyridine-2-carboxylic acid (CAS 1308677-67-9)
- 2-sulfamoylpyridine-4-carboxylic acid (CAS 1308677-82-8)
- 5-Sulfamoylpyridine-3-carboxylic acid (CAS 938066-08-1)
- Ethyl 6-sulfamoylpyridine-3-carboxylate (CAS 1251279-39-6)
- ethyl 2-sulfamoylpyridine-3-carboxylate (CAS 247136-80-7)
- 3-Sulfamoylpyridine-4-sulfonic acid (CAS 72810-60-7)
Recommended Standards
- 2-methanesulfonyl-5-methylpyrimidine-4-carboxylic acid (CAS 1803585-17-2)
- 6-fluoro-7-nitro-3,4-dihydro-2H-isoquinolin-1-one (CAS 1809018-61-8)
- 2-Fluoro-biphenyl-3-carboxylic acid (CAS 177942-40-4)
- 2-[(Thiazolidin-2-ylidene)aminomethylidene]malonic acid (CAS 1820748-73-9)
- Chloro(2-chloroethyl)dimethylsilane (CAS 44519-64-4)
- (S)-3-(3-fluorophenoxy)butanoic acid (CAS 1416445-07-2)
- 2,2-Dibromo-2-fluoro-N-(2-hydroxy-1-phenylethyl)acetamide (CAS 478258-82-1)
- 5-(Dimethylcarbamoyl)-1-methyl-1h-pyrazole-4-carboxylic acid (CAS 1006476-07-8)
- Tert-butyl 4-(4-aminophenethyl)piperazine-1-carboxylate (CAS 329004-08-2)
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