Sodium Benzenesulfonate CAS 515-42-4

Purity >95%In StockPharmaceutical Standards
CAS No.515-42-4
Molecular FormulaC6H5O3S
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Sodium Benzenesulfonate CAS 515-42-4 chemical structure

Description

As a certified reference material (CRM), Sodium Benzenesulfonate 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.

Sodium Benzenesulfonate (CAS 515-42-4), molecular formula C6H5O3SNa and molecular weight 180.15 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C6H5O3SNa, Sodium Benzenesulfonate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

Molecular FormulaC6H5O3S Na
Molecular Weight180.15 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Sulfur Atoms1

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Why CATO?