4-Amino-N-(5-chloropyrazin-2-yl)benzenesulfonamide, sodium salt CAS 71720-40-6
| CAS No. | 71720-40-6 |
| Molecular Formula | C10H9ClN4O2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Amino-N-(5-chloropyrazin-2-yl)benzenesulfonamide, sodium salt 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.
CATO supplies 4-Amino-N-(5-chloropyrazin-2-yl)benzenesulfonamide, sodium salt (CAS 71720-40-6), a certified reference material (molecular formula C10H9ClN4O2SNa, MW 307.71 g/mol) for analytical method development and quality control.
4-Amino-N-(5-chloropyrazin-2-yl)benzenesulfonamide, sodium salt (C10H9ClN4O2SNa) contains a salt form, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H9ClN4O2S Na |
| Molecular Weight | 307.71 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Succinyl-(Asp6,N-Me-Phe8)-Substance P (6-11) (CAS 106128-89-6)
- 4-(Pyridin-2-yl)-1H-pyrrole-3-carboxylic acid (CAS 1096815-73-4)
- (5-Bromo-1H-indazol-7-yl)methanol (CAS 1360957-64-7)
- 2-Bromo-6-phenylnaphthalene (CAS 22082-94-6)
- 5-Bromo-2,4-dichlorotoluene (CAS 85072-41-9)
- 3-(Azepan-1-ylsulfonyl)-5-bromopyridin-4-amine (CAS 1352517-17-9)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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