Norepinephrine Impurity 55 CAS CATO-C4X-151455
| CAS No. | CATO-C4X-151455 |
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Norepinephrine Impurity 55 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Norepinephrine Impurity 55 (CAS CATO-C4X-151455) is a certified pharmaceutical impurity reference standard with the molecular formula C8H6Cl2O3 and a molecular weight of 221.04 g/mol.
The molecular framework of Norepinephrine Impurity 55 (C8H6Cl2O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 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.
Physical & Chemical Properties
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Norepinephrine Standards
- Norepinephrine Impurity 160 (CAS CATO-C4X-1514160)
- 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
- 3,5-Dichloro-2-methoxybenzoic acid (CAS 22775-37-7)
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- Dotinurad Impurity 137 (CAS 63001-37-6)
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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