1,3,6-Naphthalenetrisulfonic acid, xsodium salt CAS 19437-42-4
| CAS No. | 19437-42-4 |
| Molecular Formula | C10H7O9S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C10H7O9S3Na, 1,3,6-Naphthalenetrisulfonic acid, xsodium salt contains a carbohydrate-derived structure, a sulfone group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 390.33 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).
1,3,6-Naphthalenetrisulfonic acid, xsodium salt (CAS 19437-42-4) is a high-purity analytical reference standard with the molecular formula C10H7O9S3Na and a molecular weight of 390.33 g/mol.
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), 1,3,6-Naphthalenetrisulfonic acid, xsodium salt 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 | C10H7O9S3 Na |
| Molecular Weight | 390.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Sulfur Atoms | 3 |
Related Naphthalenetrisulfonic Standards
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- 3-Bromo-5-(tert-butyl)benzoic Acid (CAS 794465-45-5)
- Semaglutide Impurity 162 (x TFA Salt) (CAS CATO-C4X-2226162)
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