Metaraminol Impurity 74(Mixture of Enantiomers) CAS 4956-27-8
| CAS No. | 4956-27-8 |
| Molecular Formula | 2*C9H13NO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Metaraminol Impurity 74(Mixture of Enantiomers) (CAS 4956-27-8) is a certified pharmaceutical impurity reference standard with the molecular formula C9H13NO2 and a molecular weight of 167.21 g/mol.
The molecular framework of Metaraminol Impurity 74(Mixture of Enantiomers) (C9H13NO2) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Metaraminol Impurity 74(Mixture of Enantiomers) 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 | 2*C9H13NO2 |
| Molecular Weight | 167.21 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Metaraminol Standards
- Metaraminol Impurity 12 (CAS 130826-91-4)
- Metaraminol Impurity 15 (CAS 13103-80-5)
- Metaraminol impurity 104 (CAS 1379208-51-1)
- Metaraminol Impurity 68 (CAS 1379208-51-1（free base）)
- Metaraminol Impurity 89 (CAS 1602857-88-4)
- Metaraminol Impurity 20 (CAS 1602857-90-8)
- Metaraminol Impurity 21 (CAS 1602857-94-2)
- Metaraminol Impurity 36 (CAS 1700-37-4)
Recommended Standards
- Elobixibat Impurity 6 (CAS CATO-C4X-28386)
- Vinorelbine Impurity 17 (CAS CATO-C4X-264217)
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- 2-Methoxy-N-(2-(p-tolyl)-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl)acetamide (CAS 893948-89-5)
- 2-Amino-2-(4-((3-(benzyloxy)phenyl)thio)-2-chlorophenethyl)propane-1,3-diol (CAS 509092-16-4)
- Ethyl 2-(3-oxopiperazin-1-yl)acetate (CAS 774493-57-1)
- 2-(4-Bromophenoxy)pyrazine (CAS 1016689-94-3)
- 1-Hydroxy-9-fluorenone (CAS 6344-60-1)
- 1-Iodo-4-nitro-2-(trifluoromethyl)benzene (CAS 400-75-9)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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