(2S,3S)-2-((S)-2-Amino-3-(1H-imidazol-4-yl)propanamido)-3-methylpentanoic acid CAS 129050-48-2
| CAS No. | 129050-48-2 |
| Molecular Formula | C12H20N4O3 |
| Molecular Weight | 268.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (2S,3S)-2-((S)-2-Amino-3-(1H-imidazol-4-yl)propanamido)-3-methylpentanoic acid (CAS 129050-48-2), a certified reference material (molecular formula C12H20N4O3, MW 268.31 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, (2S,3S)-2-((S)-2-Amino-3-(1H-imidazol-4-yl)propanamido)-3-methylpentanoic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 268.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (2S,3S)-2-((S)-2-Amino-3-(1H-imidazol-4-yl)propanamido)-3-methylpentanoic acid 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 | C12H20N4O3 |
| Molecular Weight | 268.31 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 4 |
Recommended Standards
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Why CATO?
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