(5R,7AR)-5-ethyltetrahydropyrrolo[1,2-c]oxazole-1,3-dione CAS 87392-44-7
| CAS No. | 87392-44-7 |
| Molecular Formula | C8H11NO3 |
| Molecular Weight | 169.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 169.18 g/mol gives (5R,7AR)-5-ethyltetrahydropyrrolo[1,2-c]oxazole-1,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (5R,7AR)-5-ethyltetrahydropyrrolo[1,2-c]oxazole-1,3-dione (CAS 87392-44-7), a certified reference material (molecular formula C8H11NO3, MW 169.18 g/mol) for analytical method development and quality control.
Structurally, (5R,7AR)-5-ethyltetrahydropyrrolo[1,2-c]oxazole-1,3-dione (C8H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 169.18 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures (5R,7AR)-5-ethyltetrahydropyrrolo[1,2-c]oxazole-1,3-dione under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H11NO3 |
| Molecular Weight | 169.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1981 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (5R)-1,3,9-triazaspiro[4.5]decane-2,4-dione (CAS 2791275-79-9)
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- (4-Amino-2-ethoxypyrimidin-5-yl)methanol (CAS 90008-65-4)
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- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
Why CATO?
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