Norepinephrine Impurity 160 CAS CATO-C4X-1514160
| CAS No. | CATO-C4X-1514160 |
| Molecular Formula | C7H9NO5S |
| Molecular Weight | 219.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Norepinephrine Impurity 160 (CAS CATO-C4X-1514160) is a certified pharmaceutical impurity reference standard with the molecular formula C7H9NO5S and a molecular weight of 219.22 g/mol.
Norepinephrine Impurity 160 (C7H9NO5S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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).
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 | C7H9NO5S |
| Molecular Weight | 219.22 g/mol |
| Purity | ≥95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Norepinephrine Standards
- Norepinephrine Impurity 55 (CAS CATO-C4X-151455)
- Norepinephrine Impurity 65 (CAS CATO-C4X-151465)
- Norepinephrine Impurity 100 (CAS CATO-C4X-1514100)
- Norepinephrine Impurity 81 (CAS 779288-87-8)
- Norepinephrine Impurity 91 (CAS 7760-00-1)
- Norepinephrine Impurity 155 (CAS CATO-C4X-1514155)
- Norepinephrine Impurity 36 (CAS 121-28-8)
- Norepinephrine Impurity 32 (CAS 24159-36-2)
Recommended Standards
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- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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