4-Nitro-2-(5-nitrothiazol-2-yl)isoindoline-1,3-dione CAS 19783-57-4
| CAS No. | 19783-57-4 |
| Molecular Formula | C11H4N4O6S |
| Molecular Weight | 320.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Nitro-2-(5-nitrothiazol-2-yl)isoindoline-1,3-dione (CAS 19783-57-4), molecular formula C11H4N4O6S and molecular weight 320.24 g/mol, is a CATO reference standard with documented purity and traceability.
4-Nitro-2-(5-nitrothiazol-2-yl)isoindoline-1,3-dione (C11H4N4O6S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
Physical & Chemical Properties
| Molecular Formula | C11H4N4O6S |
| Molecular Weight | 320.24 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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