N-(3,4-dimethoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide CAS 1105207-58-6
| CAS No. | 1105207-58-6 |
| Molecular Formula | C22H19N3O4S |
| Molecular Weight | 421.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
N-(3,4-dimethoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105207-58-6), molecular formula C22H19N3O4S and molecular weight 421.47 g/mol, is a CATO reference standard with documented purity and traceability.
N-(3,4-dimethoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (C22H19N3O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), N-(3,4-dimethoxyphenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H19N3O4S |
| Molecular Weight | 421.47 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.) | 1989 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related N Standards
- 2-(3,4-Dimethoxyphenyl)-1-{4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]piperidin-1-yl}ethan-1-one (CAS 1775493-58-7)
- (2E)-3-[3-(3,4-Dimethoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]-2-(3-methylphenyl)prop-2-enenitrile (CAS 956206-25-0)
- 11-(2,5-Dimethoxyphenyl)-6-hydroxy-13-(trifluoromethyl)-8-thia-3,10-diazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),5,10,12-pentaen-4-one (CAS 626227-93-8)
- 7-(3,4-Dimethoxyphenyl)-4-hydroxy-9-(trifluoromethyl)thieno[2,3-b:4,5-b']dipyridin-2(1H)-one (CAS 924845-19-2)
- 2-(3,4-Dimethoxyphenyl)-4-methyl-N-[3-(trifluoromethyl)phenyl]-1,3-thiazole-5-carboxamide (CAS 400080-52-6)
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- (2Z)-2-[(2,4-Dimethoxyphenyl)imino]-N-[(furan-2-yl)methyl]-7-hydroxy-2H-chromene-3-carboxamide (CAS 478482-06-3)
Recommended Standards
- Vericiguat Impurity 77 (CAS CATO-C4X-289677)
- N-[2-[2-[(2-Furanylmethyl)amino]-2-oxoethyl]-2,6-dihydro-4H-thieno[3,4-c]pyrazol-3-yl]-1H-indole-3-carboxamide (CAS 1170903-64-6)
- Famotidine impurity 72 (CAS 89167-37-3)
- 2-(2-Methoxyphenyl)-1-methyl-3-diphenylphosphino-1H-indole (CAS 1242759-01-8)
- 3-Bromo-1H-pyrrolo[2,3-b]pyridin-5-amine (CAS 1190321-04-0)
- 1-(2-Chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl)piperidine (CAS 2096341-25-0)
- (2-Ethyl-1-methyl-1H-benzo[d]imidazol-5-yl)methanol (CAS 686257-96-5)
- Methyl 4-(guanidinomethyl)benzoate (CAS 736080-30-1)
- 9-Hydroxy-9-(trifluoromethyl)-9H-fluorene (CAS 120747-41-3)
- N4-(5-Methylisoxazol-3-yl)-N1-(thiophen-2-ylmethyl)piperidine-1,4-dicarboxamide (CAS 1251548-50-1)
- 2-(6-Chloro-7-hydroxy-4-methyl-2-oxo-2H-chromen-3-yl)acetic acid (CAS 855287-83-1)
- (2R)-2-(1,2-dihydroxyethyl)tetrahydrofuran-3,4-diol (CAS 7726-97-8)
- SB-277011A dihydrochloride, >98% (HPLC) (CAS 1226917-67-4)
- DAPK Substrate Peptide (CAS 386769-53-5)
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