Ethyl 3-oxobenzo[d]isoxazole-2(3H)-carboxylate CAS 73806-09-4

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 3-oxobenzo[d]isoxazole-2(3H)-carboxylate.

Ethyl 3-oxobenzo[d]isoxazole-2(3H)-carboxylate (CAS 73806-09-4), molecular formula C20H20N2O6 and molecular weight 384.38 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Ethyl 3-oxobenzo[d]isoxazole-2(3H)-carboxylate (C20H20N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 384.38 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).

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.

As a certified reference material (CRM), Ethyl 3-oxobenzo[d]isoxazole-2(3H)-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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com