Norepinephrine Impurity 97 CAS CATO-C4X-151497
| CAS No. | CATO-C4X-151497 |
| Molecular Formula | C9H13NO6S |
| Molecular Weight | 263.27 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Norepinephrine Impurity 97 (CAS CATO-C4X-151497), a pharmacopoeial impurity reference standard (molecular formula C9H13NO6S, MW 263.27 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Norepinephrine Impurity 97 (C9H13NO6S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C9H13NO6S |
| Molecular Weight | 263.27 g/mol |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Norepinephrine Standards
- Norepinephrine impurity 143 (CAS 2469755-95-9)
- Norepinephrine Impurity 98 (CAS CATO-C4X-151498)
- Norepinephrine Impurity 12 (CAS CATO-C4X-151412)
- Norepinephrine Impurity 132 (CAS CATO-C4X-1514132)
- Norepinephrine Impurity 14 (CAS 2948-15-4)
- Norepinephrine Impurity 64 (CAS CATO-C4X-151464)
- Norepinephrine Impurity 50 (CAS 100622-09-1)
- Norepinephrine Impurity 93 (CAS CATO-C4X-151493)
Recommended Standards
- Ampicillin Impurity 85 (CAS CATO-C4X-144385)
- Sulbactam Impurity 32 (CAS CATO-C4X-175632)
- Febuxostat Impurity 30 (CAS CATO-C4X-116230)
- Adrenaline Impurity 28 (CAS CATO-C4X-184928)
- Montelukast Impurity 49 (CAS CATO-C4X-103149)
- Sulconazole impurity 1 (CAS CATO-C4X-35361)
- Mianserin Impurity 77 (CAS CATO-C4X-136977)
- 4-Chloro-5-cyclopropyl-1H-pyrazole-3-carboxylic acid (CAS 1291275-83-6)
- (E)-tert-Butyl 2-benzylidenehydrazinecarboxylate (CAS 497164-25-7)
- [S(R)]-N-[(S)-[3,5-Bis(trifluoromethyl)phenyl][2-(diphenylphosphino)phenyl]methyl]-N,2-dimethyl-2-propanesulfinamide (CAS 2565792-74-5)
- Azetidin-1-yl(4-bromopyridin-2-yl)methanone (CAS 947534-66-9)
- RMC6236 Intermediate 7 (CAS CATO-CIM-103895)
- (5E)-5-(2-Hydroxy-3-methoxybenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one 4739AF 99972-65-3 C11H9NO3S2 (CAS 99972-65-3)
- (Ser(PO?H?)2?2)-Tau Peptide (260-264) PAb Blocking trifluoroacetate salt (CAS 2022956-57-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com