5-Chloro-3-methyl-1-(tetrahydro-1,1-dioxido-3-thienyl)-1H-pyrazole-4-carboxaldehyde CAS 885-44-9

Purity 97%+In StockPharmaceutical Standards
CAS No.885-44-9
Molecular FormulaC9H11ClN2O3S
Molecular Weight262.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Chloro-3-methyl-1-(tetrahydro-1,1-dioxido-3-thienyl)-1H-pyrazole-4-carboxaldehyde CAS 885-44-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 262.71 g/mol gives 5-Chloro-3-methyl-1-(tetrahydro-1,1-dioxido-3-thienyl)-1H-pyrazole-4-carboxaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Chloro-3-methyl-1-(tetrahydro-1,1-dioxido-3-thienyl)-1H-pyrazole-4-carboxaldehyde (CAS 885-44-9) is a high-purity analytical reference standard with the molecular formula C9H11ClN2O3S and a molecular weight of 262.71 g/mol.

Based on its molecular formula C9H11ClN2O3S, 5-Chloro-3-methyl-1-(tetrahydro-1,1-dioxido-3-thienyl)-1H-pyrazole-4-carboxaldehyde contains a nitrogen-containing heterocyclic scaffold, 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 262.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 manufactures 5-Chloro-3-methyl-1-(tetrahydro-1,1-dioxido-3-thienyl)-1H-pyrazole-4-carboxaldehyde under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC9H11ClN2O3S
Molecular Weight262.71 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentCl-containing
Nitrogen Atoms2
Sulfur Atoms1

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