3-(5-Methyl-1,3,4-oxadiazol-2-yl)benzenesulfonamide CAS 1263275-20-2
| CAS No. | 1263275-20-2 |
| Molecular Formula | C9H9N3O3S |
| Molecular Weight | 239.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(5-Methyl-1,3,4-oxadiazol-2-yl)benzenesulfonamide 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.
3-(5-Methyl-1,3,4-oxadiazol-2-yl)benzenesulfonamide (CAS 1263275-20-2) is a high-purity analytical reference standard with the molecular formula C9H9N3O3S and a molecular weight of 239.25 g/mol.
The molecular framework of 3-(5-Methyl-1,3,4-oxadiazol-2-yl)benzenesulfonamide (C9H9N3O3S) is characterized by a nitrogen-containing heterocyclic scaffold, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H9N3O3S |
| Molecular Weight | 239.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
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Recommended Standards
- 5-Methyl-2-(methylthio)-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 1263215-47-9)
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- 5-[4-(Methylsulfonamido)phenyl]-2H-tetrazole (CAS 1261268-83-0)
- 3-(1-(4-Fluorophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269291-20-4)
- (3-Bromophenyl)(6-chloropyridin-3-yl)methanone (CAS 1187165-79-2)
- 5-Chloro-2-phenylpyridin-3-ol (CAS 1807274-01-6)
- Sulfo EGS (CAS 142702-32-7)
- 3-Bromo-4-(trifluoromethoxy)aniline (CAS 191602-54-7)
- Tetradecamethylhexasiloxane (CAS 107-52-8)
- ((1R,4aR,5S,6S,6aS,7S,8S,9R,11aS,11bS)-5-Acetoxy-1,6,7,8-tetrahydroxy-4,4-dimethyldodecahydro-1H-6,11b-(epoxymethano)-6a,9-methanocyclohepta[a]naphthalen-8-yl)methyl acetate (CAS 90468-72-7)
- (R)-tert-Butyl 3-(2-amino-3-fluorophenoxy)pyrrolidine-1-carboxylate (CAS 1233859-99-8)
- 1-(2-Bromo-1-(isopentyloxy)ethyl)-2-methylbenzene (CAS 1248041-84-0)
- N-(2-(6-Oxo-3-(thiophen-2-yl)pyridazin-1(6H)-yl)ethyl)furan-2-carboxamide (CAS 946264-50-2)
- Semaglutide Impurity 115 (CAS CATO-C4X-2226115)
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