3,5-Dimethyl-1-(3-methyl-1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazole-4-carbaldehyde CAS 1170905-20-0

Purity 97%+In StockPharmaceutical Standards
CAS No.1170905-20-0
Molecular FormulaC11H16N2O3S
Molecular Weight256.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,5-Dimethyl-1-(3-methyl-1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazole-4-carbaldehyde CAS 1170905-20-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 256.32 g/mol gives 3,5-Dimethyl-1-(3-methyl-1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazole-4-carbaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,5-Dimethyl-1-(3-methyl-1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazole-4-carbaldehyde (CAS 1170905-20-0) is a high-purity analytical reference standard with the molecular formula C11H16N2O3S and a molecular weight of 256.32 g/mol.

3,5-Dimethyl-1-(3-methyl-1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazole-4-carbaldehyde (C11H16N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), 3,5-Dimethyl-1-(3-methyl-1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazole-4-carbaldehyde 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 FormulaC11H16N2O3S
Molecular Weight256.32 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms2
Sulfur Atoms1

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