1-(4-Chlorophenyl)-3-(1-(thiophene-2-carbonyl)-1H-pyrazol-3-yl)pyridazin-4(1H)-one CAS 318498-06-5

Description

Based on its molecular formula C18H11ClN4O2S, 1-(4-Chlorophenyl)-3-(1-(thiophene-2-carbonyl)-1H-pyrazol-3-yl)pyridazin-4(1H)-one contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 382.82 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).

1-(4-Chlorophenyl)-3-(1-(thiophene-2-carbonyl)-1H-pyrazol-3-yl)pyridazin-4(1H)-one (CAS 318498-06-5), molecular formula C18H11ClN4O2S and molecular weight 382.82 g/mol, is a CATO reference standard with documented purity and traceability.

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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