6-Methyl-5-oxothiomorpholine-3-carboxylic acid CAS 14226-95-0
| CAS No. | 14226-95-0 |
| Molecular Formula | C6H9NO3S |
| Molecular Weight | 175.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Methyl-5-oxothiomorpholine-3-carboxylic acid (C6H9NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies 6-Methyl-5-oxothiomorpholine-3-carboxylic acid (CAS 14226-95-0), a certified reference material (molecular formula C6H9NO3S, MW 175.21 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6H9NO3S |
| Molecular Weight | 175.21 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 | 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.) | 1961 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 3-oxothiomorpholine-2-carboxylate (CAS 1795304-62-9)
- (S)-5-Oxothiomorpholine-3-carboxylic Acid (CAS 33163-97-2)
- (R)-5-Oxothiomorpholine-3-carboxylic acid 1,1-dioxide (CAS 118438-66-7)
- 5-Oxothiomorpholine-3-carboxylic acid 1,1-dioxide (CAS 122556-18-7)
- 6-Benzyl-5-oxothiomorpholine-3-carboxylic acid (CAS 31560-30-2)
Recommended Standards
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