5-Methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one CAS 35455-79-9
| CAS No. | 35455-79-9 |
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one (CAS 35455-79-9), a certified reference material (molecular formula C5H6N2OS, MW 142.18 g/mol) for analytical method development and quality control.
The molecular framework of 5-Methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one (C5H6N2OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 3-Methyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 576-28-3)
- 5-Methyl-6-thioxo-5,6-dihydropyrimidin-4(1H)-one (CAS 89322-74-7)
- 6-Methyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 91795-77-6)
- 6-Methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one (CAS 638-13-1)
- 2-Thioxo-2,3-dihydrothiazole-5-carbonitrile (CAS 56750-17-5)
- 2-thioxo-1,2-dihydropyridine-3-carbonitrile 52505-45-0 ACN-025081 (CAS 52505-45-0)
- 6-methyl-3-thioxo-2H-1,2,4-triazin-5-one (CAS 615-76-9)
- 3-Ethyl-2-thioxo-4-imidazolidinone (CAS 32607-37-7)
Recommended Standards
- 5-Methoxythiophene-3-carbaldehyde (CAS 78395-10-5)
- 5-Methoxypyrimidine-4(3H)-thione (CAS 51793-91-0)
- 5-Methylisoxazole-3-carbothioamide (CAS 77358-26-0)
- 5-Methoxy-2-thiophenecarbaldehyde (CAS 35087-46-8)
- Ethyl 3-morpholino-1H-pyrazole-4-carboxylate (CAS 1956382-24-3)
- N,N-dimethyl-2-(N-methylacetamido)acetamide (CAS 29399-02-8)
- N-(5-Bromo-2-fluoropyridin-3-yl)-2,4-difluorobenzenesulfonamide (CAS 1567836-86-5)
- 1-(4-(TRIFLUOROMETHOXY)PHENYL)PROPAN-2-ONE (CAS 1249274-01-8)
- 3-(Biphenyl-4-yloxy)pyrrolidine hydrochloride (CAS 946681-82-9)
- 2-Difluoromethyl-3-(trifluoromethyl)benzonitrile (CAS 1806312-82-2)
- Methyl 2-(5-bromo-4-chloro-2-nitrophenyl)-2-cyanoacetate (CAS 1393441-88-7)
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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