Norepinephrine Impurity 157 CAS CATO-C4X-1514157
| CAS No. | CATO-C4X-1514157 |
| Molecular Formula | C12H15NO8 |
| Molecular Weight | 301.25 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Norepinephrine Impurity 157.
CATO supplies Norepinephrine Impurity 157 (CAS CATO-C4X-1514157), a pharmacopoeial impurity reference standard (molecular formula C12H15NO8, MW 301.25 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C12H15NO8, Norepinephrine Impurity 157 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 301.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C12H15NO8 |
| Molecular Weight | 301.25 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Norepinephrine Standards
- Norepinephrine Impurity 129 (CAS CATO-C4X-1514129)
- Norepinephrine Impurity 130 (CAS CATO-C4X-1514130)
- Norepinephrine Impurity 156 (CAS CATO-C4X-1514156)
- Norepinephrine Impurity 105 (CAS CATO-C4X-1514105)
- Norepinephrine Impurity 106 (CAS CATO-C4X-1514106)
- Norepinephrine Impurity 133 (CAS 872266-28-9)
- Norepinephrine Impurity 122 (CAS CATO-C4X-1514122)
- Norepinephrine Impurity 80 (CAS CATO-C4X-151480)
Recommended Standards
- Pomalidomide Impurity 55 (CAS CATO-C4X-135455)
- Dolutegravir Impurity 43 (CAS 2651309-06-5)
- Eltrombopag Impurity 87 (CAS CATO-C4X-119887)
- Epinephrine /Adrenaline Impurity 115 (CAS CATO-C4X-1849115)
- Atracurium Impurity 122 (CAS CATO-C4X-1850122)
- Pramipexole Impurity 41 (CAS 104617-50-7)
- Palbociclib Impurity 169 (CAS CATO-C4X-1125169)
- tert-Butyl (1-(4-(aminomethyl)phenyl)pyrrolidin-3-yl)carbamate (CAS 889948-66-7)
- Methyl 4-(4-fluoro-3-methylphenyl)benzoate (CAS 1820649-60-2)
- 4-(M-tolyl)but-3-en-2-one (CAS 95416-57-2)
- 2-Phenyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazole (CAS 936901-98-3)
- (S)-1-(2,2,2-Trifluoroacetyl)pyrrolidine-2-carboxamide (CAS 151378-30-2)
- 1-(bromomethyl)-1-methanesulfonylcyclohexane (CAS 1909336-04-4)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com