N-[3-(2,1,3-Benzothiadiazol-5-ylamino)-2-quinoxalinyl]-4-methylbenzenesulfonamide, CAS 956958-53-5
| CAS No. | 956958-53-5 |
| Molecular Formula | C21H16N6O2S2 |
| Molecular Weight | 448.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 448.52 g/mol gives N-[3-(2,1,3-Benzothiadiazol-5-ylamino)-2-quinoxalinyl]-4-methylbenzenesulfonamide, distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-[3-(2,1,3-Benzothiadiazol-5-ylamino)-2-quinoxalinyl]-4-methylbenzenesulfonamide, (CAS 956958-53-5), molecular formula C21H16N6O2S2 and molecular weight 448.52 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-[3-(2,1,3-Benzothiadiazol-5-ylamino)-2-quinoxalinyl]-4-methylbenzenesulfonamide, (C21H16N6O2S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), N-[3-(2,1,3-Benzothiadiazol-5-ylamino)-2-quinoxalinyl]-4-methylbenzenesulfonamide, 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.
Physical & Chemical Properties
| Molecular Formula | C21H16N6O2S2 |
| Molecular Weight | 448.52 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
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Recommended Standards
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- Dexamethasone 21-Propionate (CAS 3793-10-0)
- tert-butyl N-(tert-butoxycarbonylamino)-N-[3-[3-(trifluoromethyl)phenyl]-1-bicyclo[1.1.1]pentanyl]carbamate (CAS 2149634-48-8)
- (1R,2R)-1,2-Bis(4-chlorophenyl)-N1,N2-dimethylethane-1,2-diamine (CAS 2444430-59-3)
- 2,3-Dichloro-5-methoxypyridine (CAS 885168-12-7)
- 914381-27-4 N-(3-Fluorophenethyl)dodecanamide N-[2-(3-Fluorophenyl)ethyl]dodecanamide (CAS 914381-27-4)
- Quinine Dihydrochloride (CAS 60-93-5)
- 1-(chloromethyl)-3,5-dimethoxybenzene (CAS 6652-32-0)
- 1-(3-(tert-Butyl)phenyl)ethanone (CAS 6136-71-6)
- 2,2,6-Trifluoro-1,3-benzodioxol-5-amine (CAS 120934-03-4)
- N-(4-(1,3-Dioxoisoindolin-2-yl)phenyl)acetamide (CAS 6543-35-7)
- N-(Pyridin-4-ylmethyl)cyclopropanamine hydrochloride (CAS 1158195-67-5)
- Liraglutide Impurity 5 TFA Salt (CAS CATO-C4X-19925)
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