Ethyl 3-((4-ethylpiperazin-1-yl)sulfonyl)-1H-pyrazole-4-carboxylate CAS 1240169-35-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1240169-35-0
Molecular FormulaC12H20N4O4S
Molecular Weight316.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 3-((4-ethylpiperazin-1-yl)sulfonyl)-1H-pyrazole-4-carboxylate CAS 1240169-35-0 chemical structure

Description

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.

CATO supplies Ethyl 3-((4-ethylpiperazin-1-yl)sulfonyl)-1H-pyrazole-4-carboxylate (CAS 1240169-35-0), a certified reference material (molecular formula C12H20N4O4S, MW 316.38 g/mol) for analytical method development and quality control.

Based on its molecular formula C12H20N4O4S, Ethyl 3-((4-ethylpiperazin-1-yl)sulfonyl)-1H-pyrazole-4-carboxylate 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 316.38 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).

As a certified reference material (CRM), Ethyl 3-((4-ethylpiperazin-1-yl)sulfonyl)-1H-pyrazole-4-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC12H20N4O4S
Molecular Weight316.38 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms4
Sulfur Atoms1

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