| CAS No. | 7747-34-4 |
| Molecular Formula | C6H11NO2 |
| Molecular Weight | 129.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 129.16 g/mol gives 7a-Methyldihydro-1H-[1,3]oxazolo[3,4-c][1,3]oxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7a-Methyldihydro-1H-[1,3]oxazolo[3,4-c][1,3]oxazole (CAS 7747-34-4), molecular formula C6H11NO2 and molecular weight 129.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7a-Methyldihydro-1H-[1,3]oxazolo[3,4-c][1,3]oxazole (C6H11NO2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. 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.
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.
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.
| Molecular Formula | C6H11NO2 |
| Molecular Weight | 129.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |