2-(Methylsulfanyl)-4,5-dihydro-1,3-thiazol-4-one CAS 20949-66-0
| CAS No. | 20949-66-0 |
| Molecular Formula | C4H5NOS2 |
| Molecular Weight | 147.22 g/mol |
| 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.
2-(Methylsulfanyl)-4,5-dihydro-1,3-thiazol-4-one (CAS 20949-66-0), molecular formula C4H5NOS2 and molecular weight 147.22 g/mol, is a CATO reference standard with documented purity and traceability.
2-(Methylsulfanyl)-4,5-dihydro-1,3-thiazol-4-one (C4H5NOS2) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; 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).
As a certified reference material (CRM), 2-(Methylsulfanyl)-4,5-dihydro-1,3-thiazol-4-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 | C4H5NOS2 |
| Molecular Weight | 147.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Methylsulfanyl Standards
- 5-(methylsulfanyl)pyrazin-2-amine (CAS 251549-38-9)
- {3-[(methylsulfanyl)methyl]oxetan-3-yl}methanol (CAS 1849316-00-2)
- 4-(Methylsulfanyl)pentanoic acid (CAS 75974-59-3)
- 5-(Methylsulfanyl)pentanoic acid (CAS 69082-95-7)
- ethyl 2-(methylsulfanyl)propanoate (CAS 40800-76-8)
- methyl 3-(methylsulfanyl)butanoate (CAS 207983-28-6)
- ethyl 3-(methylsulfanyl)prop-2-enoate (CAS 136115-65-6)
- 1-(Methylsulfanyl)cyclobutane-1-carboxylic acid (CAS 35120-20-8)
Recommended Standards
- 2-(Dimethylamino)-2-ethylpropane-1,3-diol (CAS 44865-14-7)
- 2,2'-(Methylazanediyl)bis(propan-1-ol) (CAS 56684-95-8)
- 2-(But-3-en-2-yl)aniline (CAS 4828-94-8)
- 2,2-Diethoxy-N-methylethan-1-amine (CAS 20677-73-0)
- 3-Cyclobutyl-5-fluoro-1H-indole (CAS 1699588-52-7)
- Holmium, [10-[2-[[2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethyl]amino]-2-(oxo-κO)ethyl]-1,4,7,10-tetraazacyclododecane-1,4,7-triacetato(3-)-κN1,κN4,κN7,κN10]- (CAS 1349103-97-4)
- Methyl 3-(3-chlorophenyl)-5-(4-chlorophenyl)-4,6-dioxo-1-phenyl-octahydropyrrolo[3,4-c]pyrrole-1-carboxylate (CAS 317821-79-7)
- 2-(bromomethyl)pyrimidine (CAS 54198-85-5)
- Methyl 3-(hydroxymethyl)-3-phenyl-2,3-dihydrobenzofuran-5-carboxylate (CAS 2305844-33-9)
- 1-(3-Ethoxypropyl)-1h-pyrazol-4-amine (CAS 1487056-82-5)
- 9-Hydroxy-7-methyl-2,3-dihydrocyclopenta[c]-chromen-4(1H)-one (CAS 131526-95-9)
- 9-Phenoxyphenazine-1-carboxylic acid (CAS 103942-79-6)
- 6-Chloro-4-methyl-1,2,3,4-tetrahydroisoquinoline (CAS 73037-81-7)
- Protein Kinase C (19-36) Peptide (CAS 113731-96-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com