Sodium 3-carboxy-5-sulfobenzenesulfonate CAS 83929-52-6
| CAS No. | 83929-52-6 |
| Molecular Formula | C7H4O8S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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 Sodium 3-carboxy-5-sulfobenzenesulfonate.
Sodium 3-carboxy-5-sulfobenzenesulfonate (CAS 83929-52-6) is a high-purity analytical reference standard with the molecular formula C7H4O8S2Na and a molecular weight of 303.21 g/mol.
Owing to a carbohydrate-derived structure, a sulfone group, Sodium 3-carboxy-5-sulfobenzenesulfonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 303.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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), Sodium 3-carboxy-5-sulfobenzenesulfonate 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 Formula | C7H4O8S2 2*Na |
| Molecular Weight | 303.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Sulfur Atoms | 2 |
Related Sodium Standards
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- D-Thr7-Tirzepatide (CAS CATO-CPTD788924)
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