(5-(Thiophen-2-yl)isoxazol-3-yl)methyl 1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxylate CAS 1203263-78-8
| CAS No. | 1203263-78-8 |
| Molecular Formula | C14H11N3O4S |
| Molecular Weight | 317.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (5-(Thiophen-2-yl)isoxazol-3-yl)methyl 1-methyl-6-oxo-1,6-dihydropyridazine-3-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.
(5-(Thiophen-2-yl)isoxazol-3-yl)methyl 1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxylate (CAS 1203263-78-8) is a high-purity analytical reference standard with the molecular formula C14H11N3O4S and a molecular weight of 317.32 g/mol.
Structurally, (5-(Thiophen-2-yl)isoxazol-3-yl)methyl 1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxylate (C14H11N3O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 317.32 g/mol, it falls into the moderately-high-molecular-weight range. 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), (5-(Thiophen-2-yl)isoxazol-3-yl)methyl 1-methyl-6-oxo-1,6-dihydropyridazine-3-carboxylate 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 | C14H11N3O4S |
| Molecular Weight | 317.32 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 4-Phenyltetrahydrofuran-2-ol (CAS 128372-48-5)
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