(S)-4-(((S)-1-Carboxy-2-(4-hydroxyphenyl)ethyl)amino)-3-hydroxy-4-oxobutanoic acid CAS 688013-96-9
| CAS No. | 688013-96-9 |
| Molecular Formula | C13H15NO7 |
| Molecular Weight | 297.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (S)-4-(((S)-1-Carboxy-2-(4-hydroxyphenyl)ethyl)amino)-3-hydroxy-4-oxobutanoic 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.
(S)-4-(((S)-1-Carboxy-2-(4-hydroxyphenyl)ethyl)amino)-3-hydroxy-4-oxobutanoic acid (CAS 688013-96-9) is a high-purity analytical reference standard with the molecular formula C13H15NO7 and a molecular weight of 297.26 g/mol.
The molecular framework of (S)-4-(((S)-1-Carboxy-2-(4-hydroxyphenyl)ethyl)amino)-3-hydroxy-4-oxobutanoic acid (C13H15NO7) is characterized by a nitrogen-containing heterocyclic scaffold, 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. 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.
Physical & Chemical Properties
| Molecular Formula | C13H15NO7 |
| Molecular Weight | 297.26 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
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