Sodium 6-((4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl)amino)naphthalene-2-sulfonate CAS 71936-81-7
| CAS No. | 71936-81-7 |
| Molecular Formula | C20H13N2O5S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H13N2O5SNa, Sodium 6-((4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl)amino)naphthalene-2-sulfonate contains a flavonoid 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 416.38 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).
Sodium 6-((4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl)amino)naphthalene-2-sulfonate (CAS 71936-81-7), molecular formula C20H13N2O5SNa and molecular weight 416.38 g/mol, is a CATO reference standard with documented purity and traceability.
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 6-((4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)phenyl)amino)naphthalene-2-sulfonate 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 | C20H13N2O5S Na |
| Molecular Weight | 416.38 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-Amino-3,5-dibromo-4-methylpyridine (CAS 3430-29-3)
- 3-Hydroxy-7-azabicyclo[2.2.1]Heptane-1-carboxylic acid (CAS 1822552-93-1)
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