| CAS No. | 1340239-10-2 |
| Molecular Formula | C9H17NO3S |
| Molecular Weight | 219.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
1-(Azepan-1-yl)-2-(methylsulfonyl)ethan-1-one (CAS 1340239-10-2), molecular formula C9H17NO3S and molecular weight 219.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(Azepan-1-yl)-2-(methylsulfonyl)ethan-1-one (C9H17NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 219.30 g/mol, it falls into the medium-molecular-weight range. 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 | C9H17NO3S |
| Molecular Weight | 219.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |