2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide CAS 335399-46-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 335399-46-7 |
| Molecular Formula | C19H21N3O3S2 |
| Molecular Weight | 403.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 335399-46-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C19H21N3O3S2. Molecular weight: 403.52 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C19H21N3O3S2 |
| Molecular Weight | 403.52 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Ethyl Standards
- 2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)-N-(3,5-dimethylphenyl)-N-methylthiophene-3-sulfonamide (CAS 1207022-15-8)
- N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N-ethyl-4-methylbenzenesulfonamide (CAS 1325303-32-9)
- N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-4-ethyl-N-methylbenzenesulfonamide (CAS 1325303-98-7)
- N-[2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl]-N,3,4-trimethylbenzene-1-sulfonamide (CAS 1325305-25-6)
- 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(2-methoxyphenyl)acetamide (CAS 335399-54-7)
- 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(3-methoxyphenyl)acetamide (CAS 578734-75-5)
- 2-[3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl]-6-(4-fluorophenyl)pyrazolo[1,5-a]pyrimidin-7-amine (CAS 439095-87-1)
- [2,5-Dimethyl-4-oxazol-2-yl-3-(propane-1-sulfonyl)-phenyl]-(5-hydroxy-1-methyl-1H-pyrazol-4-yl)-methanone (CAS 1231575-76-0)
Recommended Standards
- 2,6-Bis(pyrrolidin-1-ylmethyl)-4-(quinazolin-4-ylamino)phenol (CAS 72063-47-9)
- 3-(3-(Dimethylamino)propyl)-1-((furan-2-ylmethyl)(methyl)amino)-3-phenylindolin-2-one (CAS 33391-49-0)
- 1-Cyclohexyl-1-((7,8-dimethyl-2-oxo-1,2-dihydroquinolin-3-yl)methyl)-3-phenylurea (CAS 552311-06-5)
- 4-Bromo-3-chloro-alpha-(trifluoromethyl)benzyl Alcohol (CAS 1690490-18-6)
- 1-(3,5-Dichlorophenyl)-2,2-dimethylpropan-1-one (CAS 898766-63-7)
- 5-chloro-4-fluoro-1H-pyrrolo[2,3-b]pyridine (CAS 1190317-94-2)
- Daptomycin Impurity 29 (CAS CATO-C4X-137829)
- (3S,5R)-Fluvastatin (CAS 155229-76-8)
- 2,2,2-Trifluoro-1-(3-fluorophenyl)ethylamine Hydrochloride (CAS 1185302-13-9)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
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