5-Cyclopentyl-7-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid CAS 1781934-06-2

Description

The molecular framework of 5-Cyclopentyl-7-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid (C12H14N4O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

5-Cyclopentyl-7-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid (CAS 1781934-06-2) is a high-purity analytical reference standard with the molecular formula C12H14N4O2 and a molecular weight of 246.27 g/mol.

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), 5-Cyclopentyl-7-methyl-1H-pyrazolo[4,3-d]pyrimidine-3-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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