(S)-1-tert-Butyl 2-ethyl 4,4-difluoropyrrolidine-1,2-dicarboxylate CAS 1001853-59-3
| CAS No. | 1001853-59-3 |
| Molecular Formula | C12H19F2NO4 |
| Molecular Weight | 279.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (S)-1-tert-Butyl 2-ethyl 4,4-difluoropyrrolidine-1,2-dicarboxylate is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(S)-1-tert-Butyl 2-ethyl 4,4-difluoropyrrolidine-1,2-dicarboxylate (CAS 1001853-59-3), molecular formula C12H19F2NO4 and molecular weight 279.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (S)-1-tert-Butyl 2-ethyl 4,4-difluoropyrrolidine-1,2-dicarboxylate (C12H19F2NO4) 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. 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).
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.
As a certified reference material (CRM), (S)-1-tert-Butyl 2-ethyl 4,4-difluoropyrrolidine-1,2-dicarboxylate 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.
Physical & Chemical Properties
| Molecular Formula | C12H19F2NO4 |
| Molecular Weight | 279.28 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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