N-(3,4-Dimethylisoxazol-5-yl)-[1,1'-biphenyl]-4-sulfonamide CAS 166963-33-3

Purity 97%+In StockPharmaceutical Standards
CAS No.166963-33-3
Molecular FormulaC17H16N2O3S
Molecular Weight328.39 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

N-(3,4-Dimethylisoxazol-5-yl)-[1,1'-biphenyl]-4-sulfonamide CAS 166963-33-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N-(3,4-Dimethylisoxazol-5-yl)-[1,1'-biphenyl]-4-sulfonamide.

N-(3,4-Dimethylisoxazol-5-yl)-[1,1'-biphenyl]-4-sulfonamide (CAS 166963-33-3) is a high-purity analytical reference standard with the molecular formula C17H16N2O3S and a molecular weight of 328.39 g/mol.

Based on its molecular formula C17H16N2O3S, N-(3,4-Dimethylisoxazol-5-yl)-[1,1'-biphenyl]-4-sulfonamide contains a steroid core, 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 328.39 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).

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

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC17H16N2O3S
Molecular Weight328.39 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2004
Nitrogen Atoms2
Sulfur Atoms1

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