Norepinephrine Impurity 101 CAS 32655-70-2
| CAS No. | 32655-70-2 |
| Molecular Formula | C9H13NO3 |
| Molecular Weight | 183.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Norepinephrine Impurity 101 (C9H13NO3) is characterized by an amino-acid-derived structure, an amide 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).
As a process- or degradation-related impurity, Norepinephrine Impurity 101 (CAS 32655-70-2, C9H13NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
As a certified reference material (CRM), Norepinephrine Impurity 101 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 | C9H13NO3 |
| Molecular Weight | 183.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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 |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
Related Norepinephrine Standards
- Norepinephrine Impurity 111 (CAS 2947-04-8)
- Norepinephrine impurity 54 (CAS 1932110-67-2)
- Norepinephrine Impurity 17 (CAS CATO-C4X-151417)
- Norepinephrine Impurity 158 (CAS CATO-C4X-1514158)
- Norepinephrine Impurity 51 (CAS 73917-81-4)
- Norepinephrine impurity 148 (CAS 50988-14-2)
- Norepinephrine Impurity 19 (CAS CATO-C4X-151419)
- Norepinephrine Impurity 10 (CAS 2948-16-5)
Recommended Standards
- Phenylephrine Impurity 56 (CAS CATO-C4X-146756)
- L(-)-Epinephrine (CAS 51-43-4)
- Vigabatrin Impurity 7 (CAS CATO-C4X-11967)
- Captopril Impurity 26 (CAS 51161-88-7)
- Bempedoic Acid Impurity N2 (CAS 59415-00-8)
- Gefitinib Impurity 1 (CAS 1502829-45-9)
- Tirofiban Impurity 84 (CAS CATO-C4X-125484)
- (S)-Methyl 4-(piperidin-2-yl)benzoate (CAS 1213455-84-5)
- 2-(5-Methylthiophen-2-yl)butanoic acid (CAS 1513082-64-8)
- 3-(Bromomethyl)-4-(difluoromethyl)-5-fluoropyridin-2-amine (CAS 1804726-45-1)
- Carbazochrome Impurity N4 (CAS 42372-66-7)
- Katacalcin (CAS 85916-47-8)
- (7-Methoxy-1-benzofuran-2-yl)(4-methoxyphenyl)methanone (CAS 477848-12-7)
- Semaglutide impurity 47 (CAS CATO-C4X-222647)
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