Ethyl 3-[4-(methylsulfonyl)phenyl]-1,2,4-oxadiazole-5-carboxylate CAS 1181676-02-7
| CAS No. | 1181676-02-7 |
| Molecular Formula | C12H12N2O5S |
| Molecular Weight | 296.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 3-[4-(methylsulfonyl)phenyl]-1,2,4-oxadiazole-5-carboxylate is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 3-[4-(methylsulfonyl)phenyl]-1,2,4-oxadiazole-5-carboxylate (CAS 1181676-02-7), molecular formula C12H12N2O5S and molecular weight 296.30 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ethyl 3-[4-(methylsulfonyl)phenyl]-1,2,4-oxadiazole-5-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 296.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Ethyl 3-[4-(methylsulfonyl)phenyl]-1,2,4-oxadiazole-5-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12N2O5S |
| Molecular Weight | 296.30 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- 3-Methyl-1-(1-(3-(methylsulfonyl)phenyl)cyclobutyl)butan-1-amine (CAS 2241053-11-0)
- (4-Methyl-6-(methylsulfonyl)pyridin-3-yl)boronic acid pinacol ester (CAS 1353745-98-8)
- 2-Methyl-6-(methylsulfonyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1420297-13-7)
Recommended Standards
- 3-{[(4-methyl-4H-1,2,4-triazol-3-yl)methyl]sulfamoyl}benzoic acid (CAS 1184252-63-8)
- 4-((6-Fluoro-2,3-dihydro-2-methyl-3-oxobenzo[b][1,4]oxazin-4-yl)methyl)benzonitrile (CAS 1159978-64-9)
- N-[2-(Indol-3-yl-2,4,5,6,7-d5)acetyl]-L-aspartic-15N Acid (CAS 1201012-71-6)
- 5-(4-Methanesulfonylphenoxymethyl)furan-2-carboxylic acid (CAS 1157777-00-8)
- 3-Phenyl-2-((4-phenylpiperidin-1-yl)methyl)-1H-indole (CAS 827016-70-6)
- Relugolix Impurity 32 (CAS 1334511-36-2)
- N-(4-Bromo-3-methylphenyl)-5-methylisoxazole-4-carboxamide (CAS 61643-47-8)
- tert-Butyl cis-5-methylenehexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate (CAS 139228-12-9)
- 3-Bromo-1-(p-tolyl)-1H-pyrazole (CAS 1622841-05-7)
- 2,3-Dimethyl 6-chloropyridine-2,3-dicarboxylate (CAS 32383-03-2)
- Salmeterol Impurity 12 (CAS 108928-82-1)
- 3-Methyl-3h-imidazo[4,5-f]isoquinolin-2-amine hydrobromide (CAS 1246819-52-2)
- 4,7-Dibromobenzo[<I>c</I>]-1,2,5-thiadiazole (CAS 15155-41-6)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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