(E)-4-((4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)amino)-4-oxobut-2-enoic acid CAS 314282-26-3
| CAS No. | 314282-26-3 |
| Molecular Formula | C14H13N3O6S |
| Molecular Weight | 351.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-4-((4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)amino)-4-oxobut-2-enoic acid (CAS 314282-26-3) is a high-purity analytical reference standard with the molecular formula C14H13N3O6S and a molecular weight of 351.33 g/mol.
Based on its molecular formula C14H13N3O6S, (E)-4-((4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)amino)-4-oxobut-2-enoic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 351.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), (E)-4-((4-(N-(5-methylisoxazol-3-yl)sulfamoyl)phenyl)amino)-4-oxobut-2-enoic acid 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 | C14H13N3O6S |
| Molecular Weight | 351.33 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- Benzaldehyde, 3-ethoxy-6-nitro-2-[(phenylsulfonyl)oxy]- (CAS 130570-43-3)
- 3-(4-Fluorobenzyl)-1-(4-methoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinecarbonitrile (CAS 321432-33-1)
- 3-(1-(4-Fluorobenzyl)-1H-1,2,3-triazol-4-yl)-5-(4-methoxyphenyl)-1,2,4-oxadiazole (CAS 1251630-71-3)
- 3-Fluoro-N-((1-(4-fluorophenyl)-1H-tetrazol-5-yl)methyl)benzenesulfonamide (CAS 941964-43-8)
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- 1,3-Dioxan-5-ol, compd. with 1,3-dioxolane-4-methanol (1:1) (CAS 1246647-95-9)
- Cefditoren Impurity 21 (CAS CATO-C4X-135821)
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- N,N-Dimethylpentylone hydrochloride (CAS 17763-13-2)
- Semaglutide Impurity 133 (CAS CATO-C4X-2226133)
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