7-Methoxy-3,4-dihydrobenzo[f][1,4]thiazepin-5(2H)-one CAS 145903-32-8
| CAS No. | 145903-32-8 |
| Molecular Formula | C10H11NO2S |
| Molecular Weight | 209.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
7-Methoxy-3,4-dihydrobenzo[f][1,4]thiazepin-5(2H)-one (CAS 145903-32-8), molecular formula C10H11NO2S and molecular weight 209.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-Methoxy-3,4-dihydrobenzo[f][1,4]thiazepin-5(2H)-one (C10H11NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 209.26 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).
As a certified reference material (CRM), 7-Methoxy-3,4-dihydrobenzo[f][1,4]thiazepin-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.
Physical & Chemical Properties
| Molecular Formula | C10H11NO2S |
| Molecular Weight | 209.26 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 7-Methoxy-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one (CAS 110766-87-5)
- 2-Methoxy-6-(morpholin-4-yl)pyridin-3-amine (CAS 526184-47-4)
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- 2-Methoxy-L-homophenylalanine (CAS 1089276-09-4)
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