Ethyl 5-methyl-4-[(1,3-thiazol-2-ylamino)carbonyl]-3-isoxazolecarboxylate CAS 338408-87-0
| CAS No. | 338408-87-0 |
| Molecular Formula | C11H11N3O4S |
| Molecular Weight | 281.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 5-methyl-4-[(1,3-thiazol-2-ylamino)carbonyl]-3-isoxazolecarboxylate (CAS 338408-87-0), molecular formula C11H11N3O4S and molecular weight 281.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 5-methyl-4-[(1,3-thiazol-2-ylamino)carbonyl]-3-isoxazolecarboxylate (C11H11N3O4S) 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 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 281.29 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Ethyl 5-methyl-4-[(1,3-thiazol-2-ylamino)carbonyl]-3-isoxazolecarboxylate 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 | C11H11N3O4S |
| Molecular Weight | 281.29 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
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