Ethyl 4-((4-chlorophenyl)carbamoyl)-5-methylisoxazole-3-carboxylate CAS 134889-04-6

Description

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.

Ethyl 4-((4-chlorophenyl)carbamoyl)-5-methylisoxazole-3-carboxylate (CAS 134889-04-6), molecular formula C14H13ClN2O4 and molecular weight 308.72 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Ethyl 4-((4-chlorophenyl)carbamoyl)-5-methylisoxazole-3-carboxylate (C14H13ClN2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 308.72 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

CATO manufactures Ethyl 4-((4-chlorophenyl)carbamoyl)-5-methylisoxazole-3-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

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