Metaraminol Impurity 13 CAS 47017-04-9
| CAS No. | 47017-04-9 |
| Molecular Formula | C16H19NO2 |
| Molecular Weight | 257.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Metaraminol Impurity 13 (CAS 47017-04-9) is a certified pharmaceutical impurity reference standard with the molecular formula C16H19NO2 and a molecular weight of 257.33 g/mol.
Structurally, Metaraminol Impurity 13 (C16H19NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 257.33 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C16H19NO2 |
| Molecular Weight | 257.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1970 |
| Nitrogen Atoms | 1 |
Related Metaraminol Standards
- Metaraminol Impurity 26 (CAS CATO-C4X-225226)
- Metaraminol Impurity 44 (CAS CATO-C4X-225244)
- Metaraminol Impurity 45 (CAS CATO-C4X-225245)
- Metaraminol Impurity 46 (CAS CATO-C4X-225246)
- Metaraminol Impurity 47 (CAS CATO-C4X-225247)
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- Metaraminol Impurity 48 (CAS CATO-C4X-225248)
- Metaraminol Impurity 49 (CAS CATO-C4X-225249)
Recommended Standards
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- Agomelatine Impurity 32 (CAS 138112-79-5)
- Rosuvastatin Impurity 123 (CAS 1112048-62-0)
- Prasugrel Impurity 20 (CAS 109904-26-9)
- Cefminox Impurity 4 (CAS CATO-C4X-19264)
- Procymidone Impurity 43 (CAS 169327-83-7)
- Leu-Enkephalin, amide (CAS 60117-24-0)
- 7-Bromo-5-chloro-2,3-dihydrobenzofuran (CAS 134402-21-4)
- 1,5-Dimethyl-6-oxo-1,6-dihydropyridine-3-carbaldehyde (CAS 2003197-55-3)
- Tricyclo[3.2.1.0*2,4*]octane-3-carboxylic acid (CAS 37399-09-0)
- 5-(5-Fluoro-2-methoxyphenyl)-5-oxopentanoic acid (CAS 951892-68-5)
- Peptide 434 (CAS CATO-CPTD788434)
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