4-(2-chloroethyl)-1-methyl-1H-pyrazole CAS 1093881-63-0

Description

Compared with other compounds in its class, the molecular weight of 148.63 g/mol gives 4-(2-chloroethyl)-1-methyl-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(2-chloroethyl)-1-methyl-1H-pyrazole (CAS 1093881-63-0) is a high-purity analytical reference standard with the molecular formula C6H13ClN2 and a molecular weight of 148.63 g/mol.

Owing to chlorine substitution, 4-(2-chloroethyl)-1-methyl-1H-pyrazole is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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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