N-(3,5-Dichlorophenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide CAS 577763-67-8
| CAS No. | 577763-67-8 |
| Molecular Formula | C18H17Cl2N3O2S2 |
| Molecular Weight | 442.38 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.
CATO supplies N-(3,5-Dichlorophenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 577763-67-8), a certified reference material (molecular formula C18H17Cl2N3O2S2, MW 442.38 g/mol) for analytical method development and quality control.
N-(3,5-Dichlorophenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (C18H17Cl2N3O2S2) contains a steroid core, an amide group, a sulfone 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H17Cl2N3O2S2 |
| Molecular Weight | 442.38 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related N Standards
- N-(2,5-Dichlorophenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 335399-74-1)
- N-(3,4-Dichlorophenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 618427-83-1)
- 3-({[(2,6-dichlorophenyl)methyl]sulfanyl}methyl)-4-ethyl-5-{[(4-fluorophenyl)methyl]sulfanyl}-4H-1,2,4-triazole (CAS 344273-75-2)
- 2-(3,4-Dichlorophenyl)-N-(4-(N-(thiazol-2-yl)sulfamoyl)phenyl)acetamide (CAS 1004000-82-1)
- 1-[(3,4-Dichlorophenyl)methyl]-5-(4-phenylpiperazine-1-carbonyl)-1,2-dihydropyridin-2-one (CAS 242472-02-2)
- n-(2,5-Dichlorophenyl)-2-mercapto-4-oxo-3-phenyl-3,4-dihydroquinazoline-7-carboxamide (CAS 885458-61-7)
- 4-[(E)-2-(2,4-Dichlorophenyl)ethenyl]-8-(trifluoromethoxy)-2H,3H-thieno[3,2-c]quinoline (CAS 866133-29-1)
- (((3,4-Dichlorophenyl)amino)(furan-2-yl)methyl)diphenylphosphine oxide (CAS 680212-11-7)
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