5-Methylthiomorpholine-3-carboxylic acid 1-oxide hydrochloride CAS 91673-63-1
| CAS No. | 91673-63-1 |
| Molecular Formula | C6H11NO3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Methylthiomorpholine-3-carboxylic acid 1-oxide hydrochloride (CAS 91673-63-1), molecular formula C6H11NO3SHCl and molecular weight 213.68 g/mol, is a CATO reference standard with documented purity and traceability.
5-Methylthiomorpholine-3-carboxylic acid 1-oxide hydrochloride (C6H11NO3SHCl) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5-Methylthiomorpholine-3-carboxylic acid 1-oxide hydrochloride 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 | C6H11NO3S HCl |
| Molecular Weight | 213.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylthiomorpholine Standards
- (S)-3-Methylthiomorpholine (CAS 1286768-72-6)
- (R)-3-Methylthiomorpholine (CAS 1286768-94-2)
- 3-Methylthiomorpholine 1,1-dioxide (CAS 148761-50-6)
- 2-Methylthiomorpholine 1,1-dioxide (CAS 148761-51-7)
- 2-Ethyl-6-methylthiomorpholine 1,1-dioxide (CAS 1489600-29-4)
- 2-ethyl-6-methylthiomorpholine (CAS 1492419-12-1)
- 5-Methylthiomorpholine-3-carboxylic acid 1-oxide (CAS 15042-85-0)
- 2-Ethyl-6-methylthiomorpholine 1-oxide (CAS 1562110-91-1)
Recommended Standards
- 2-Ethoxy-N-((1-(furan-2-ylmethyl)piperidin-4-yl)methyl)-1-naphthamide (CAS 953996-74-2)
- 2-[1-({[(tert-butoxy)carbonyl]amino}methyl)cyclopropyl]acetic acid (CAS 1784351-60-5)
- 2-(4-Benzylpiperazin-1-yl)-N-(5-fluoro-2-methylphenyl)acetamide (CAS 303091-33-0)
- Tetramethylammoniumn-butyltriphenylborate (CAS 117522-01-7)
- tert-Butyl (4-bromo-2-hydroxy-6-nitrophenyl)carbamate (CAS 2413904-95-5)
- 4-Bromo-3-cyano-5-methyl-1H-pyrrole-2-carboxylic acid (CAS 848498-87-3)
- 2-(2-Cyano-5-(difluoromethyl)-4-nitropyridin-3-yl)acetic acid (CAS 1805183-08-7)
- 1-(5-methyl-2-furyl)propan-1-amine (CAS 64271-00-7)
- n-(1-Methoxypropan-2-yl)cyclooctanamine (CAS 416866-32-5)
- Tirzepatide Impurity 33 (CAS CATO-C4X-324033)
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