Sodium 4,5-dihydroxy-3-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate CAS 5850-64-6
| CAS No. | 5850-64-6 |
| Molecular Formula | C20H11N2O11S3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Sodium 4,5-dihydroxy-3-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate (C20H11N2O11S3Na) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.5, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 574.48 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Sodium 4,5-dihydroxy-3-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate (CAS 5850-64-6), molecular formula C20H11N2O11S3Na and molecular weight 574.48 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 4,5-dihydroxy-3-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate 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 | C20H11N2O11S3 3*Na |
| Molecular Weight | 574.48 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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
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