Norepinephrine Impurity 24 CAS 62932-90-5
| CAS No. | 62932-90-5 |
| Molecular Formula | C8H7ClO2 |
| Molecular Weight | 170.59 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7ClO2, Norepinephrine Impurity 24 contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Norepinephrine Impurity 24 (CAS 62932-90-5), a pharmacopoeial impurity reference standard (molecular formula C8H7ClO2, MW 170.59 g/mol) used for the identification and quantification of trace impurities in APIs.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Norepinephrine Impurity 24 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 | C8H7ClO2 |
| Molecular Weight | 170.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
Related Norepinephrine Standards
- Norepinephrine Impurity 42 (CAS 28822-73-3)
- Norepinephrine Impurity 31 (CAS 73660-93-2)
- Norepinephrine Impurity 18 (CAS CATO-C4X-151418)
- D-Norepinephrine (CAS 149-95-1)
- Norepinephrine impurity 147 (CAS CATO-C4X-1514147)
- Norepinephrine Impurity 54 (CAS CATO-C4X-151454)
- Norepinephrine Impurity 57 (CAS 29477-54-1)
- Norepinephrine Impurity 58 (CAS 408328-15-4)
Recommended Standards
- Azelastine Impurity 34 (CAS 1878-66-6)
- Tranexamic Acid Impurity 12 (CAS 31719-77-4)
- Decitabine Impurity 28 (CAS 1126-46-1)
- Tranexamic Acid Impurity 13 (CAS 85888-81-9)
- Sugammadex Impurity 84 (CAS 2379877-89-9)
- Benidipine Impurity 8 (CAS CATO-C4X-11208)
- Capecitabine Impurity 39 (CAS CATO-C4X-102439)
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- (4Z)-4-{[(2-chlorophenyl)amino]methylidene}-1-phenyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 477851-29-9)
- 2-(Hydroxyamino)-1,3-dimethylbenzene (CAS 3096-63-7)
- Bentazone-Methyl (CAS 61592-45-8)
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- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
Why CATO?
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