4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-Pyrrolo[2,3-b]pyridine-2-carboxylic acid ethyl ester CAS 945865-21-4

Description

4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-Pyrrolo[2,3-b]pyridine-2-carboxylic acid ethyl ester (CAS 945865-21-4), molecular formula C16H21BN2O4 and molecular weight 316.16 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-Pyrrolo[2,3-b]pyridine-2-carboxylic acid ethyl ester (C16H21BN2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 316.16 g/mol, it falls into the moderately-high-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.

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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