Sodium 1-amino-4-((4-amino-2-sulfonatophenyl)amino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate CAS 20349-48-8
| CAS No. | 20349-48-8 |
| Molecular Formula | C20H13N3O8S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 1-amino-4-((4-amino-2-sulfonatophenyl)amino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate (CAS 20349-48-8), molecular formula C20H13N3O8S2Na and molecular weight 510.45 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Sodium 1-amino-4-((4-amino-2-sulfonatophenyl)amino)-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate (C20H13N3O8S2Na) 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 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 510.45 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C20H13N3O8S2 2*Na |
| Molecular Weight | 510.45 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
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- 2,7-Dichlorohept-1-ene (CAS 485320-12-5)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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