3-Methyl-4-(thiophen-2-yl)-1H-pyrazol-5-amine hydrochloride CAS 1238869-86-7

Description

The occurrence of 3-Methyl-4-(thiophen-2-yl)-1H-pyrazol-5-amine hydrochloride is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 3-Methyl-4-(thiophen-2-yl)-1H-pyrazol-5-amine hydrochloride (CAS 1238869-86-7), a certified reference material (molecular formula C8H9N3SHCl, MW 215.70 g/mol) for analytical method development and quality control.

Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 3-Methyl-4-(thiophen-2-yl)-1H-pyrazol-5-amine hydrochloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 215.70 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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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