5-Chloro-2-(methylthio)-N-(p-tolyl)pyrimidine-4-carboxamide CAS 306958-67-8
| CAS No. | 306958-67-8 |
| Molecular Formula | C13H12ClN3OS |
| Molecular Weight | 293.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Chloro-2-(methylthio)-N-(p-tolyl)pyrimidine-4-carboxamide (CAS 306958-67-8), molecular formula C13H12ClN3OS and molecular weight 293.77 g/mol, is a CATO reference standard with documented purity and traceability.
5-Chloro-2-(methylthio)-N-(p-tolyl)pyrimidine-4-carboxamide (C13H12ClN3OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H12ClN3OS |
| Molecular Weight | 293.77 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-Chloro-2-methoxy-N-(2-methoxyethyl)-4-methylbenzenesulfonamide (CAS 1087640-21-8)
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Recommended Standards
- 9-Ethyl-9h-carbazole-3-sulfonyl chloride (CAS 24525-01-7)
- 2-Chlorobenzyl 2-(methylthio)nicotinate (CAS 721910-30-1)
- Benzenesulfonamide, N-[(4-chlorophenyl)methylene]-4-methyl-, [N(E)]- (CAS 357417-22-2)
- N-(4-Chlorobenzylidene)-4-methylbenzenesulfonamide (CAS 3157-65-1)
- n-Cyclooctyl-6-hydrazinylpyridine-3-sulfonamide (CAS 1036606-53-7)
- 2-((3-Fluorobenzyl)oxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1346708-04-0)
- 2,6-Bis(trifluoromethyl)quinoline-4-carboxamide, 97% (CAS 1185292-83-4)
- Melatonin Impurity 19 (CAS CATO-C4X-229220)
- 3'-O-Methyl Guanosine (CAS 10300-27-3)
- (chloromethoxy)cyclobutane (CAS 104620-74-8)
- 3-Acetylamino-5-fluoro-1H-indole-2-carboxylic acid (CAS 330439-67-3)
- 5-Amino-4-(benzo[d]thiazol-2-yl)-1-phenyl-1H-pyrrol-3-ol (CAS 330857-84-6)
- 2-Methyl-N-((tetrahydrofuran-2-yl)methyl)butan-1-amine (CAS 858796-41-5)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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