2-hydroxy-3-nitrobenzene-1-sulfonamide CAS 1261760-55-7
| CAS No. | 1261760-55-7 |
| Molecular Formula | C6H6N2O5S |
| Molecular Weight | 218.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-hydroxy-3-nitrobenzene-1-sulfonamide 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.
2-hydroxy-3-nitrobenzene-1-sulfonamide (CAS 1261760-55-7), molecular formula C6H6N2O5S and molecular weight 218.19 g/mol, is a CATO reference standard with documented purity and traceability.
2-hydroxy-3-nitrobenzene-1-sulfonamide (C6H6N2O5S) contains a carbohydrate-derived structure, an amide group, a sulfone group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C6H6N2O5S |
| Molecular Weight | 218.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related hydroxy Standards
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