Norepinephrine Impurity 95 CAS CATO-C4X-151495
| CAS No. | CATO-C4X-151495 |
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Norepinephrine Impurity 95 (CAS CATO-C4X-151495, C9H11NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Norepinephrine Impurity 95 (C9H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 165.19 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C9H11NO2 |
| Molecular Weight | 165.19 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Norepinephrine Standards
- Norepinephrine Impurity 28 (CAS 117883-03-1)
- Norepinephrine Impurity 40 (CAS 3569-19-5)
- Norepinephrine Impurity 21 (CAS 490-89-1)
- Norepinephrine Impurity 15 (CAS 29477-55-2)
- Norepinephrine Impurity 27 (CAS 14309-96-7)
- Norepinephrine Impurity 127 (CAS 94593-04-1)
- Norepinephrine Impurity 20 (CAS 67896-55-3)
- Norepinephrine impurity 152 (CAS 490-90-4)
Recommended Standards
- Phenylephrine Ipurity 54 (CAS 93202-93-8)
- Lidocaine Impurity 57 (CAS 102878-74-0)
- Dapoxetine Impurity 39 (CAS 13921-90-9)
- Bacampicillin Hydrochloride EP Impurity G (CAS 24461-61-8)
- Perospirone Impurity 40 (CAS CATO-C4X-245840)
- Atomoxetine Impurity N15 (CAS 1643684-02-9)
- Amoxicillin Impurity 35 (CAS CATO-C4X-114835)
- 4-(Pyrazin-2-yl)-1,4-diazabicyclo[3.2.1]octane (CAS 675589-90-9)
- Methyl 2,5-dichloro-4-fluorophenylacetate (CAS 1806277-08-6)
- Edaravone Impurity 38 (CAS 68175-73-5)
- N1-(Pyridin-4-yl)propane-1,3-diamine (CAS 1016501-09-9)
- tert-Butyl (3-hydroxy-2-methylbutyl)carbamate (CAS 179116-03-1)
- 4-Chloro-1-(2-(ethylsulfonyl)ethyl)-1h-pyrazol-3-amine (CAS 1342027-87-5)
- Calcitonin C-Terminal Flanking Peptide (human) XTFA (CAS 85916-47-8（free base）)
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