(2S,3R)-2-Amino-4,4-difluoro-3-hydroxybutanoic acid CAS 438477-05-5
| CAS No. | 438477-05-5 |
| Molecular Formula | C4H7F2NO3 |
| Molecular Weight | 155.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (2S,3R)-2-Amino-4,4-difluoro-3-hydroxybutanoic 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.
(2S,3R)-2-Amino-4,4-difluoro-3-hydroxybutanoic acid (CAS 438477-05-5) is a high-purity analytical reference standard with the molecular formula C4H7F2NO3 and a molecular weight of 155.10 g/mol.
Based on its molecular formula C4H7F2NO3, (2S,3R)-2-Amino-4,4-difluoro-3-hydroxybutanoic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 155.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C4H7F2NO3 |
| Molecular Weight | 155.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (2R,3S)-2-Amino-4,4-difluoro-3-hydroxybutanoic acid (CAS 1932087-12-1)
- (R)-2-Amino-3,3-difluoro-4-hydroxybutanoic acid (CAS 208756-00-7)
- 5,7-Difluorobenzo[d]oxazole (CAS 192583-01-0)
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- Insulin Degludec Impurity 1 (CAS 843666-26-2)
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