3-[2-(3,4-dimethoxyphenyl)ethyl]-2-sulfanyl-5-(thiophen-2-yl)-3h,4h-thieno[2,3-d]pyrimidin-4-one CAS 743452-31-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 743452-31-5 |
| Molecular Formula | C20H18N2O3S3 |
| Molecular Weight | 430.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-[2-(3,4-dimethoxyphenyl)ethyl]-2-sulfanyl-5-(thiophen-2-yl)-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 743452-31-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H18N2O3S3. Molecular weight: 430.56 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H18N2O3S3 |
| Molecular Weight | 430.56 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related dimethoxyphenyl Standards
- (2E)-3-[(3,5-Dimethoxyphenyl)amino]-1-[3-(3-methoxyphenyl)-2,1-benzoxazol-5-yl]prop-2-en-1-one (CAS 383147-18-0)
- 6-{[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}-3-phenyl-3H,6H,7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 1040644-99-2)
- Methyl 3-(2-((5-(3,5-dimethoxyphenyl)-1,3,4-oxadiazol-2-yl)thio)acetamido)benzoate (CAS 838816-57-2)
- N-(3,4-dimethoxyphenyl)-2-oxo-1-(3-(trifluoromethyl)benzyl)-1,2-dihydropyridine-3-carboxamide (CAS 339027-73-5)
- (1R)-1-(3,4-Dimethoxyphenyl)-4-hydroxy-2-cyclohexene-1-ethanol 1-(4-Methylbenzenesulfonate) (CAS 866394-50-5)
- (E)-4-(3-(2,4-dimethoxyphenyl)acryloyl)phenyl 3-nitrobenzoate (CAS 331461-70-2)
- N-(2,4-Dimethoxyphenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 578756-18-0)
- N-(3,4-Dimethoxyphenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 578750-65-9)
Recommended Standards
- 2-((4-Methylbenzyl)sulfonyl)-4,5-diphenyl-1-propyl-1H-imidazole (CAS 338957-10-1)
- Methyl 2-(4-(tert-butyl)benzamido)-5-(diethylcarbamoyl)-4-methylthiophene-3-carboxylate (CAS 424809-80-3)
- 10-(4-Heptylphenyl)-14-thia-11,16-diazatetracyclo[7.7.0.0^{2,7}.0^{11,15}]hexadeca-1(9),2(7),3,5,15-pentaene-8,12-dione (CAS 685106-83-6)
- (S)-2-((tert-Butoxycarbonyl)amino)-3-(3,3-difluorocyclobutyl)propanoic acid (CAS 1629681-42-0)
- Methyl (2r)-2-amino-3-(4-chloro-3-fluorophenyl)propanoate hydrochloride (CAS 2445749-39-1)
- 14-Hydroxy Clarithromycin (CAS 110671-78-8)
- Trazodone EP Impurity E (CAS 1346599-35-6)
- 1-(2-Fluorophenyl)cyclopropan-1-amine hydrochloride (CAS 1215107-57-5)
- 3-Methyl-8-azaspiro[4.5]Decan-1-amine (CAS 2055840-16-7)
- Tumor Targeted Pro-Apoptotic Peptide (CAS 1926163-30-5)
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 13829788188 / jacky.chen@cato-chem.com