Ethyl 5-(benzylthio)-1-methyl-1H-pyrazole-4-carboxylate CAS 105958-89-2

Purity 97%+In StockPharmaceutical Standards
CAS No.105958-89-2
Molecular FormulaC14H16N2O2S
Molecular Weight276.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 5-(benzylthio)-1-methyl-1H-pyrazole-4-carboxylate CAS 105958-89-2 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.

Ethyl 5-(benzylthio)-1-methyl-1H-pyrazole-4-carboxylate (CAS 105958-89-2) is a high-purity analytical reference standard with the molecular formula C14H16N2O2S and a molecular weight of 276.35 g/mol.

Based on its molecular formula C14H16N2O2S, Ethyl 5-(benzylthio)-1-methyl-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 276.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

As a certified reference material (CRM), Ethyl 5-(benzylthio)-1-methyl-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 FormulaC14H16N2O2S
Molecular Weight276.35 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Nitrogen Atoms2
Sulfur Atoms1

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