4-[(4-Methoxyphenyl)methyl]thiomorpholine-3,5-dione CAS 338953-64-3
| CAS No. | 338953-64-3 |
| Molecular Formula | C12H13NO3S |
| Molecular Weight | 251.30 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.
4-[(4-Methoxyphenyl)methyl]thiomorpholine-3,5-dione (CAS 338953-64-3), molecular formula C12H13NO3S and molecular weight 251.30 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 4-[(4-Methoxyphenyl)methyl]thiomorpholine-3,5-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 251.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C12H13NO3S |
| Molecular Weight | 251.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methoxyphenyl Standards
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- 4-(4-Methoxyphenyl)-2-methylthiomorpholine-3,5-dione (CAS 344266-10-0)
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- 1,3-Dihydro-5-(hydroxymethyl)-2H-isoindole, N-CBZ protected (CAS 1019889-84-9)
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