N-(3,4-dimethoxyphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide CAS 1040682-67-4
| CAS No. | 1040682-67-4 |
| Molecular Formula | C24H23N3O4S2 |
| Molecular Weight | 481.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 481.59 g/mol gives N-(3,4-dimethoxyphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-(3,4-dimethoxyphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040682-67-4), molecular formula C24H23N3O4S2 and molecular weight 481.59 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of N-(3,4-dimethoxyphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (C24H23N3O4S2) is characterized by a flavonoid core, an amide group, a sulfone group, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures N-(3,4-dimethoxyphenyl)-2-((3-ethyl-4-oxo-7-phenyl-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide 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 | C24H23N3O4S2 |
| Molecular Weight | 481.59 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related N Standards
- N-(2,4-dimethoxyphenyl)-2-((3-methyl-4-oxo-7-(p-tolyl)-3,4-dihydrothieno[3,2-d]pyrimidin-2-yl)thio)acetamide (CAS 1040631-78-4)
- N-(2,5-Dimethoxyphenyl)-2-({3-ethyl-4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-2-yl}sulfanyl)acetamide (CAS 1040660-76-1)
- Methyl 5-(3,4-dimethoxyphenyl)-2-(2-methoxybenzylidene)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 335420-97-8)
- 2,6-Dimethoxyphenyl-6-O- b-D-glucopyranosyl b-D-Glucopyranoside (CAS 1416253-72-9)
- (2Z)-3-[3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]-1-[3-(trifluoromethyl)phenyl]prop-2-en-1-one (CAS 956923-16-3)
- 1-(2,5-Dimethoxyphenyl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)ethanone (CAS 477329-67-2)
- 1-(3,4-Dimethoxyphenyl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)ethanone (CAS 477333-49-6)
- 4-(3,4-Dimethoxyphenyl)-2-((2-(piperidin-1-yl)ethyl)thio)-6-(p-tolyl)nicotinonitrile (CAS 332910-69-7)
Recommended Standards
- 2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)-N-(4-methoxyphenyl)-N-methyl-4-phenylthiophene-3-sulfonamide (CAS 1173768-72-3)
- Dofequidar (CAS 129716-58-1)
- Bevantolol Impurity 34 (CAS CATO-C4X-241134)
- Nintedanib Impurity N5 (CAS 262366-32-5)
- Methyl 3-amino-2-bromo-5-chlorobenzoate (CAS 1403596-33-7)
- 1-(2,6-Dichlorobenzyl)-N-(2,4-difluorophenyl)-6-oxo-1,6-dihydropyridine-3-carboxamide (CAS 339008-61-6)
- Isopropyl 3-chloro-4-hydroxybenzoate (CAS 37470-50-1)
- Tucatinib Impurity 50 (CAS CATO-C4X-260550)
- ((3R,4R,5S)-5-Isopropyl-4-(methylamino)pyrrolidin-3-yl)methanol (CAS 221876-51-3)
- (2S,2'S,3S,3'S)-WingPhos (CAS 1435940-19-4)
- [2-(4-chloro-1h-pyrazol-1-yl)-6-methylpyridin-3-yl]methanamine (CAS 1251118-88-3)
- 2-Chloro-6-iodoquinazolin-4(3H)-one (CAS 438190-96-6)
- 2-Hydroxy-3’-methylacetophenone (CAS 121612-23-5)
- Semaglutide impurity 01 (CAS 1998701-31-7)
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