3-[2-(3,4-Dimethoxyphenyl)ethyl]-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one CAS 588696-73-5
| CAS No. | 588696-73-5 |
| Molecular Formula | C20H22N2O3S2 |
| Molecular Weight | 402.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 3-[2-(3,4-Dimethoxyphenyl)ethyl]-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (C20H22N2O3S2) is characterized by a steroid 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).
3-[2-(3,4-Dimethoxyphenyl)ethyl]-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 588696-73-5) is a high-purity analytical reference standard with the molecular formula C20H22N2O3S2 and a molecular weight of 402.53 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-[2-(3,4-Dimethoxyphenyl)ethyl]-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one 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 | C20H22N2O3S2 |
| Molecular Weight | 402.53 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.) | 1984 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Dimethoxyphenyl Standards
- 2-(3,4-Dimethoxyphenyl)-3-((4-nitrophenyl)amino)-1H-inden-1-one (CAS 1022311-73-4)
- (3,4-Dimethoxyphenyl)methyl N-(3-chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)carbamate (CAS 477848-94-5)
- 3-(2,4-Dimethoxyphenyl)-N-(naphthalen-1-yl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483995-10-4)
- 3-(2,5-Dimethoxyphenyl)-N-(naphthalen-1-yl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483995-61-5)
- Methyl 4-[4-(2,4-dimethoxyphenyl)piperazin-1-yl]-3-nitrobenzoate (CAS 478246-33-2)
- 1-(3,4-dimethoxyphenyl)-3-[3,5-di(trifluoromethyl)phenyl]prop-2-en-1-one (CAS 254096-57-6)
- 4-{2-[3-(3,4-dimethoxyphenyl)-1,2,4-oxadiazol-5-yl]pyrrolidine-1-carbonyl}benzonitrile (CAS 1788979-16-7)
- N-(1-((2,5-dimethoxyphenyl)sulfonyl)piperidin-4-yl)benzamide (CAS 860788-11-0)
Recommended Standards
- 3-(4-Benzyl-5-mercapto-4H-[1,2,4]triazol-3-yl)-N,N-diethyl-benzenesulfonamide (CAS 554404-39-6)
- 3-O-Benzyl 15,16-Dehydro Estrone Monoethylene Ketal (CAS 534572-67-3)
- 2-{[(3-fluorophenyl)methyl]sulfanyl}-4,5-diphenyl-1-propyl-1H-imidazole (CAS 339277-94-0)
- 4-[(Benzenesulfinyl)methyl]-2-phenyl-6-(phenylsulfanyl)pyrimidine (CAS 320421-36-1)
- 4-(Benzyloxy)-3-isopropylbenzaldehyde (CAS 373642-03-6)
- Ethylene Glycol Monodecanoate (CAS 16179-41-2)
- 3,4-Difluoro-5-methylphenol (CAS 1806289-63-3)
- N-(1,3-Benzodioxol-5-ylmethyl)-3-[2-(methylamino)ethyl]-1,2,4-oxadiazole-5-carboxamide hydrochloride (CAS 1332528-82-1)
- 6-Methyl-2-oxo-1,2-dihydropyrimidine-4-carbonitrile (CAS 944892-04-0)
- N-(4-(4-Aminopyridin-3-yl)phenyl)methanesulfonamide (CAS 1258627-02-9)
- 5-Bromo-2-(trifluoromethoxy)pyrimidineDISCONTINUED (CAS 886365-69-1)
- 2-amino-5-methylpyridine-3-sulfonyl chloride (CAS 162010-70-0)
- 4-(3-Fluorophenethyl)piperidine (CAS 148492-14-2)
- Tirzepatide Impurity 25 X TFA Salt (CAS CATO-C4X-324025)
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