5,7-Dichloro-3-cyclopentyl-1-methyl-1H-pyrazolo[4,3-d]pyrimidine CAS 1956331-13-7

Description

The occurrence of 5,7-Dichloro-3-cyclopentyl-1-methyl-1H-pyrazolo[4,3-d]pyrimidine is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 5,7-Dichloro-3-cyclopentyl-1-methyl-1H-pyrazolo[4,3-d]pyrimidine (CAS 1956331-13-7), a certified reference material (molecular formula C11H12Cl2N4, MW 271.15 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 5,7-Dichloro-3-cyclopentyl-1-methyl-1H-pyrazolo[4,3-d]pyrimidine is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 271.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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