4-(((4-Aminophenyl)sulfonyl)carbamoyl)pyridine 1-oxide CAS 923163-95-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 923163-95-5 |
| Molecular Formula | C12H11N3O4S |
| Molecular Weight | 293.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(((4-Aminophenyl)sulfonyl)carbamoyl)pyridine 1-oxide (CAS 923163-95-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C12H11N3O4S. Molecular weight: 293.30 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C12H11N3O4S |
| Molecular Weight | 293.30 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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- N-(3-aminophenyl)-4-nitrobenzenesulfonamide (CAS 333737-28-3)
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Recommended Standards
- 3-Nitrophenyl 4-methylbenzenesulfonate (CAS 3899-90-9)
- 4-((4-(s-Hydroxysulfonimidoyl)phenyl)carbamoyl)pyridine 1-oxide (CAS 923138-66-3)
- 3-Cyclopropyl-1-(2-nitrobenzenesulfonyl)-1H-pyrazole (CAS 957002-73-2)
- (S)-2-(4-Isopropyl-4,5-dihydrooxazol-2-yl)benzenesulfonic acid (CAS 832104-33-3)
- (3R,4S)-rel-4-(3-Bromophenyl)pyrrolidine-3-carboxylic acid hydrochloride (CAS 1423037-48-2)
- 3-(4-Chlorobenzyl)-1-(2-methoxyethyl)-1-(thiophen-3-ylmethyl)urea (CAS 1219906-58-7)
- 3-(3,4-Diethoxyphenyl)-5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridine (CAS 1775421-84-5)
- Ethyl 5-(N-Boc)aminomethylisoxazole-3-carboxylate (CAS 253196-37-1)
- (E)-1-(piperazin-1-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one (CAS 88053-13-8)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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