4-Cyanobenzo[d]oxazole-2-carboxylic acid CAS 1804087-35-1

Description

The occurrence of 4-Cyanobenzo[d]oxazole-2-carboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4-Cyanobenzo[d]oxazole-2-carboxylic acid (CAS 1804087-35-1), molecular formula C9H4N2O3 and molecular weight 188.14 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-Cyanobenzo[d]oxazole-2-carboxylic acid (C9H4N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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 188.14 g/mol, it falls into the medium-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).

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), 4-Cyanobenzo[d]oxazole-2-carboxylic acid 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

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