(R)-2-((tert-Butoxycarbonyl)amino)-3,3-difluorobutanoic acid CAS 2205050-75-3
| CAS No. | 2205050-75-3 |
| Molecular Formula | C9H15F2NO4 |
| Molecular Weight | 239.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 239.22 g/mol gives (R)-2-((tert-Butoxycarbonyl)amino)-3,3-difluorobutanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(R)-2-((tert-Butoxycarbonyl)amino)-3,3-difluorobutanoic acid (CAS 2205050-75-3), molecular formula C9H15F2NO4 and molecular weight 239.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (R)-2-((tert-Butoxycarbonyl)amino)-3,3-difluorobutanoic acid (C9H15F2NO4) is characterized by an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. 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. 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 | C9H15F2NO4 |
| Molecular Weight | 239.22 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 |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (5-Nitro-2-phenyl-1,3-dioxan-5-yl)methanol (CAS 51430-71-8)
- (S)-2-(tert-Butoxycarbonylamino)-4,4-difluorobutanoic acid (CAS 467442-20-2)
- (2s)-3-(4-Hydroxyphenyl)-2-[(methoxycarbonyl)amino]propanoic acid (CAS 338386-45-1)
- (S)-3-(((benzyloxy)carbonyl)amino)-2-hydroxypropanoic acid (CAS 42491-79-2)
- Flupyradifurone (CAS 951659-40-8)
- 2-Chloro-3-(piperidin-4-ylmethoxy)pyrazine (CAS 1708288-74-7)
- (R)-2-[(1,3-Dioxoisoindolin-2-yl)methyl]morpholine-4-carboxylic acid tert-butyl ester (CAS 1308849-93-5)
- 1-(2-Bromobenzo[d]oxazol-4-yl)ethanone (CAS 1803863-04-8)
- Diisopropyl 3-oxocyclobutane-1,1-dicarboxylate (CAS 893724-10-2)
- 1-(6-Bromo-3-fluoro-2-pyridyl)ethanone (CAS 1016228-01-5)
- 1-Amino-3-(3,4-dimethyl-phenoxy)-propan-2-ol (CAS 50738-96-0)
- Methyl 2-amino-5-methoxy-4-methylbenzoate (CAS 666735-14-4)
- 3,3,3-trifluoro-1-(5-fluoro-1H-indol-3-yl)propan-1-one (CAS 1480459-88-8)
- Pancreatic Polypeptide (rat) (CAS 90419-12-8)
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