| CAS No. | 17625-03-5 |
| Molecular Formula | C7H11O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Sodium 3-carboxybenzenesulfonate.
CATO supplies Sodium 3-carboxybenzenesulfonate (CAS 17625-03-5), a certified reference material (molecular formula C7H11O5SNa, MW 230.21 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Sodium 3-carboxybenzenesulfonate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 230.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Sodium 3-carboxybenzenesulfonate 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.
| Molecular Formula | C7H11O5S Na |
| Molecular Weight | 230.21 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 1 |