(4aR,7S)-1,1-dioxo-3,4,4a,5,6,7-hexahydro-2H-pyrrolo[1,2-b]thiazine-7-carboxylic acid CAS 1316754-63-8
| CAS No. | 1316754-63-8 |
| Molecular Formula | C8H13NO4S |
| Molecular Weight | 219.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 219.26 g/mol gives (4aR,7S)-1,1-dioxo-3,4,4a,5,6,7-hexahydro-2H-pyrrolo[1,2-b]thiazine-7-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(4aR,7S)-1,1-dioxo-3,4,4a,5,6,7-hexahydro-2H-pyrrolo[1,2-b]thiazine-7-carboxylic acid (CAS 1316754-63-8), molecular formula C8H13NO4S and molecular weight 219.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (4aR,7S)-1,1-dioxo-3,4,4a,5,6,7-hexahydro-2H-pyrrolo[1,2-b]thiazine-7-carboxylic acid (C8H13NO4S) 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 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 219.26 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.
As a certified reference material (CRM), (4aR,7S)-1,1-dioxo-3,4,4a,5,6,7-hexahydro-2H-pyrrolo[1,2-b]thiazine-7-carboxylic acid 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.
Physical & Chemical Properties
| Molecular Formula | C8H13NO4S |
| Molecular Weight | 219.26 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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