D-Asparagine tert-Butyl Ester CAS 72287-71-9
| CAS No. | 72287-71-9 |
| Molecular Formula | C8H16N2O3 |
| Molecular Weight | 188.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of D-Asparagine tert-Butyl Ester is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
D-Asparagine tert-Butyl Ester (CAS 72287-71-9) is a high-purity analytical reference standard with the molecular formula C8H16N2O3 and a molecular weight of 188.22 g/mol.
D-Asparagine tert-Butyl Ester (C8H16N2O3) 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. 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.
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 | C8H16N2O3 |
| Molecular Weight | 188.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related D Standards
- Asparagine EP Impurity C (CAS 98490-54-1)
- D-Asparagine Methyl Ester (CAS 108258-31-7)
- L-Asparagine-D8 (CAS 1217457-69-6)
- 748757-99-5 L-Asparagine-15N2 L-Asparagine-15N2,d8 (CAS 748757-99-5)
- D-Asparagine (CAS 2058-58-4)
- L-Asparagine (CAS 70-47-3)
- Asparagine EP Impurity H (CAS 58471-52-6)
- Asparagine EP Impurity F (CAS 61365-15-9)
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