(2S)-2-amino-5-((5-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)amino)pentanoic acid CAS 149204-50-2
| CAS No. | 149204-50-2 |
| Molecular Formula | C9H16N4O3 |
| Molecular Weight | 228.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| 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 (2S)-2-amino-5-((5-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)amino)pentanoic acid.
(2S)-2-amino-5-((5-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)amino)pentanoic acid (CAS 149204-50-2) is a high-purity analytical reference standard with the molecular formula C9H16N4O3 and a molecular weight of 228.25 g/mol.
(2S)-2-amino-5-((5-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)amino)pentanoic acid (C9H16N4O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C9H16N4O3 |
| Molecular Weight | 228.25 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, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 4 |
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