1-(tert-Butyl)2-ethyl(2s,4s)-4-methyl-5-oxopyrrolidine-1,2-dicarboxylate CAS 553679-44-0
| CAS No. | 553679-44-0 |
| Molecular Formula | C13H21NO5 |
| Molecular Weight | 271.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(tert-Butyl)2-ethyl(2s,4s)-4-methyl-5-oxopyrrolidine-1,2-dicarboxylate (CAS 553679-44-0), molecular formula C13H21NO5 and molecular weight 271.31 g/mol, is a CATO reference standard with documented purity and traceability.
1-(tert-Butyl)2-ethyl(2s,4s)-4-methyl-5-oxopyrrolidine-1,2-dicarboxylate (C13H21NO5) contains a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 1-(tert-Butyl)2-ethyl(2s,4s)-4-methyl-5-oxopyrrolidine-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 | C13H21NO5 |
| Molecular Weight | 271.31 g/mol |
| Appearance | Off-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, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 1-(tert-Butyl) 3-methyl 3-(2-oxoethyl)pyrrolidine-1,3-dicarboxylate (CAS 2641823-41-6)
- 1,8-Dimethyl-6-phenyl-3a,4,6,8b-tetrahydro-1H,3H-pyrazolo[4',3':5,6]pyrano[4,3-c]isoxazole (CAS 400075-70-9)
- 1-(tert-Butoxycarbonyl)-5-oxa-8-azaspiro[3.5]nonane-2-carboxylic acid (CAS 2852761-64-7)
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