3-Ethyl-5,6-dimethyl-2-((2-oxo-2-phenylethyl)thio)thieno[2,3-d]pyrimidin-4(3H)-one CAS 335399-66-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 335399-66-1 |
| Molecular Formula | C18H18N2O2S2 |
| Molecular Weight | 358.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Ethyl-5,6-dimethyl-2-((2-oxo-2-phenylethyl)thio)thieno[2,3-d]pyrimidin-4(3H)-one (CAS 335399-66-1), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H18N2O2S2. Molecular weight: 358.48 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C18H18N2O2S2 |
| Molecular Weight | 358.48 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 | 2 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 3-(4-Ethoxyphenyl)-2-sulfanyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3h)-one (CAS 65234-03-9)
- 4-((4-Fluorophenyl)thio)-2-(methylthio)benzo[4,5]thieno[3,2-d]pyrimidine (CAS 478029-97-9)
- 2-Mercapto-3-(4-methoxyphenyl)-3,5,6,7,8,9-hexahydro-4h-cyclohepta[4,5]thieno[2,3-d]pyrimidin-4-one (CAS 309741-47-7)
- H-Aib-OMe · HCl (CAS 15028-41-8)
- 4-Benzyl-2-(2h-1,2,3,4-tetrazol-5-yl)morpholine (CAS 1269151-45-2)
- 6-(4-((5-Ethylthiophen-2-yl)sulfonyl)piperazin-1-yl)-3-(furan-2-yl)-[1,2,4]triazolo[4,3-b]pyridazine (CAS 1060308-83-9)
- IC 261 (CAS 186611-52-9)
- 2-(2-Aminopropanamido)hexanoic acid (CAS 19079-66-4)
- TRis(1h,1h-heptafluorobutyl)borate (CAS 755-53-3)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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