| CAS No. | 6940-71-2 |
| Molecular Formula | C7H17NO6S |
| Molecular Weight | 243.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 243.28 g/mol gives 3-Amino-2-benzoyl-4-cyclohexylisoxazol-5(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Amino-2-benzoyl-4-cyclohexylisoxazol-5(2H)-one (CAS 6940-71-2), molecular formula C7H17NO6S and molecular weight 243.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Amino-2-benzoyl-4-cyclohexylisoxazol-5(2H)-one (C7H17NO6S) is characterized by a carbohydrate-derived structure, an amide group, a sulfone group. 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.
As a certified reference material (CRM), 3-Amino-2-benzoyl-4-cyclohexylisoxazol-5(2H)-one 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 | C7H17NO6S |
| Molecular Weight | 243.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |