| CAS No. | 912265-92-0 |
| Molecular Formula | C14H20N2O5 |
| Molecular Weight | 296.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(tert-Butyl) 3-ethyl 6,7-dihydroisoxazolo[4,5-c]pyridine-3,5(4H)-dicarboxylate.
5-(tert-Butyl) 3-ethyl 6,7-dihydroisoxazolo[4,5-c]pyridine-3,5(4H)-dicarboxylate (CAS 912265-92-0), molecular formula C14H20N2O5 and molecular weight 296.32 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 5-(tert-Butyl) 3-ethyl 6,7-dihydroisoxazolo[4,5-c]pyridine-3,5(4H)-dicarboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 296.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 5-(tert-Butyl) 3-ethyl 6,7-dihydroisoxazolo[4,5-c]pyridine-3,5(4H)-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.
| Molecular Formula | C14H20N2O5 |
| Molecular Weight | 296.32 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |