Isobenzofuro[5,4-d]oxazole CAS 214489-59-5

Description

Compared with other compounds in its class, the molecular weight of 159.14 g/mol gives Isobenzofuro[5,4-d]oxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Isobenzofuro[5,4-d]oxazole (CAS 214489-59-5), molecular formula C9H5NO2 and molecular weight 159.14 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, Isobenzofuro[5,4-d]oxazole (C9H5NO2) contains an amino-acid-derived structure, an amide 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 159.14 g/mol, it falls into the medium-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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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