(S)-2-Amino-3-(5-(tert-butyl)-3-(phosphonomethoxy)isoxazol-4-yl)propanoic acid CAS 252930-37-3
| CAS No. | 252930-37-3 |
| Molecular Formula | C11H19N2O7P |
| Molecular Weight | 322.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(S)-2-Amino-3-(5-(tert-butyl)-3-(phosphonomethoxy)isoxazol-4-yl)propanoic acid (CAS 252930-37-3) is a high-purity analytical reference standard with the molecular formula C11H19N2O7P and a molecular weight of 322.25 g/mol.
Structurally, (S)-2-Amino-3-(5-(tert-butyl)-3-(phosphonomethoxy)isoxazol-4-yl)propanoic acid (C11H19N2O7P) contains an amide group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 322.25 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H19N2O7P |
| Molecular Weight | 322.25 g/mol |
| Appearance | 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, 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
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