3-Amino-4-methyl-1-(4-(methylsulfonyl)phenyl)-1H-pyrazol-5(4H)-one CAS 31522-06-2

Description

The occurrence of 3-Amino-4-methyl-1-(4-(methylsulfonyl)phenyl)-1H-pyrazol-5(4H)-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

3-Amino-4-methyl-1-(4-(methylsulfonyl)phenyl)-1H-pyrazol-5(4H)-one (CAS 31522-06-2), molecular formula C11H13N3O3S and molecular weight 267.30 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H13N3O3S, 3-Amino-4-methyl-1-(4-(methylsulfonyl)phenyl)-1H-pyrazol-5(4H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 267.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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