N-(3-Chlorophenyl)-2-sulfanyl-1,3-benzoxazole-5-sulfonamide CAS 438030-98-9
| CAS No. | 438030-98-9 |
| Molecular Formula | C13H9ClN2O3S2 |
| Molecular Weight | 340.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies N-(3-Chlorophenyl)-2-sulfanyl-1,3-benzoxazole-5-sulfonamide (CAS 438030-98-9), a certified reference material (molecular formula C13H9ClN2O3S2, MW 340.81 g/mol) for analytical method development and quality control.
Based on its molecular formula C13H9ClN2O3S2, N-(3-Chlorophenyl)-2-sulfanyl-1,3-benzoxazole-5-sulfonamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 340.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C13H9ClN2O3S2 |
| Molecular Weight | 340.81 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related N Standards
- 2-(2-Chlorophenyl)-N-(2-(3-(pyridin-2-yl)-1H-pyrazol-1-yl)ethyl)acetamide (CAS 1448036-86-9)
- 2-(2-Chlorophenyl)-N-(2-(3-(pyridin-4-yl)-1H-pyrazol-1-yl)ethyl)acetamide (CAS 1448071-58-6)
- 2-(3-Chlorophenyl)dibenzo[f,h]quinoxaline (CAS 1677677-90-5)
- (S)-[2-(4-Chlorophenyl)-1-pyrrolidinyl](3-methyl-1H-pyrazolo[3,4-b]pyridin-5-yl)methanone (CAS 1883423-59-3)
- N-(2-chlorophenyl)-1-(3,4-dimethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide (CAS 902887-78-9)
- n-(2-Chlorophenyl)-2-sulfanyl-1,3-benzoxazole-5-sulfonamide (CAS 380426-70-0)
- N-(2-Chlorophenyl)-2-sulfanyl-1,3-benzoxazole-6-sulfonamide (CAS 379254-64-5)
- N-(3-chlorophenyl)-1-(3,4-dimethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide (CAS 866847-91-8)
Recommended Standards
- N-(3-Chlorophenyl)-4-(4-cyanophenyl)tetrahydro-1(2H)-pyrazinecarboxamide (CAS 478046-91-2)
- N-(4-chlorophenyl)-1-(3,4-dimethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide (CAS 866847-92-9)
- N-(4-Chlorophenyl)-4-(4-cyanophenyl)tetrahydro-1(2H)-pyrazinecarboxamide (CAS 478046-85-4)
- Epinastine impurity 60 (CAS CATO-C4X-184060)
- Phenyl(5-propyl-1,2,4-oxadiazol-3-yl)methanamine (CAS 1155533-18-8)
- 4-Methoxyphenylurea (CAS 1566-42-3)
- 2-(Ethoxycarbonyl)-N-methylindole (CAS 18450-24-3)
- 4-(4-Chloro-1H-pyrazol-1-yl)-2-methylbenzaldehyde (CAS 1247173-31-4)
- N-(7-(methoxyimino)-5,5-dimethyl-4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl)acetamide (CAS 1274948-15-0)
- 2-(Trans-4-((tert-butoxycarbonyl)amino)cyclohexyl)ethyl 4-methylbenzenesulfonate (CAS 2093293-77-5)
- Allyl Ester of Atorvastatin Cyclic (Fluorophenyl) Impurity (CAS 1316643-57-8)
- 2-(4-fluorofuran-2-yl)acetic acid (CAS 1500850-23-6)
- Methyl 2-amino-2-(2,5-dimethoxyphenyl)acetate (CAS 1218122-03-2)
- Des-His(1)-Semaglutide (CAS CATO-C4X-2226216)
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