4-(3,5-Dimethyl-1h-pyrazol-1-yl)benzene-1-sulfonic acid CAS 91088-11-8

Purity 97%+In StockPharmaceutical Standards
CAS No.91088-11-8
Molecular FormulaC11H12N2O3S
Molecular Weight252.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(3,5-Dimethyl-1h-pyrazol-1-yl)benzene-1-sulfonic acid CAS 91088-11-8 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 252.29 g/mol gives 4-(3,5-Dimethyl-1h-pyrazol-1-yl)benzene-1-sulfonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 4-(3,5-Dimethyl-1h-pyrazol-1-yl)benzene-1-sulfonic acid (CAS 91088-11-8), a certified reference material (molecular formula C11H12N2O3S, MW 252.29 g/mol) for analytical method development and quality control.

Structurally, 4-(3,5-Dimethyl-1h-pyrazol-1-yl)benzene-1-sulfonic acid (C11H12N2O3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 252.29 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 4-(3,5-Dimethyl-1h-pyrazol-1-yl)benzene-1-sulfonic acid 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 FormulaC11H12N2O3S
Molecular Weight252.29 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983
Nitrogen Atoms2
Sulfur Atoms1

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