N-nitroso-colistin a hydrogen methanesulfonate-4 CAS CATO-C4X-225549
| CAS No. | CATO-C4X-225549 |
| Molecular Formula | C58H109N17O29S5 |
| Molecular Weight | 1668.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
N-nitroso-colistin a hydrogen methanesulfonate-4 (CAS CATO-C4X-225549) is a high-purity analytical reference standard with the molecular formula C58H109N17O29S5 and a molecular weight of 1668.91 g/mol.
N-nitroso-colistin a hydrogen methanesulfonate-4 (C58H109N17O29S5) 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).
As a certified reference material (CRM), N-nitroso-colistin a hydrogen methanesulfonate-4 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 | C58H109N17O29S5 |
| Molecular Weight | 1668.91 g/mol |
| Purity | 95% |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 17 |
| Sulfur Atoms | 5 |
Related N Standards
- N-nitroso-colistin a hydrogen methanesulfonate-1 (CAS CATO-C4X-225546)
- N-nitroso-colistin a hydrogen methanesulfonate-2 (CAS CATO-C4X-225547)
- N-nitroso-colistin a hydrogen methanesulfonate-3 (CAS CATO-C4X-225548)
- N-nitroso-colistin a hydrogen methanesulfonate-5 (CAS CATO-C4X-225550)
- N-nitroso-colistin b hydrogen methanesulfonate-1 (CAS CATO-C4X-225551)
- N-nitroso-colistin b hydrogen methanesulfonate-2 (CAS CATO-C4X-225552)
- N-nitroso-colistin b hydrogen methanesulfonate-3 (CAS CATO-C4X-225553)
- N-nitroso-colistin b hydrogen methanesulfonate-4 (CAS CATO-C4X-225554)
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