2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-mesitylacetamide CAS 618427-80-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 618427-80-8 |
| Molecular Formula | C21H25N3O2S2 |
| Molecular Weight | 415.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-mesitylacetamide (CAS 618427-80-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H25N3O2S2. Molecular weight: 415.57 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H25N3O2S2 |
| Molecular Weight | 415.57 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.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Ethyl Standards
- 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(2-ethyl-6-methylphenyl)acetamide (CAS 578749-67-4)
- 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(2-isopropylphenyl)acetamide (CAS 618427-77-3)
- 2-((3-Ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)-N-(4-isopropylphenyl)acetamide (CAS 618427-84-2)
- 4,6-Dimethyl-2,3-bis(4-methylbenzenesulfonyl)pyridine (CAS 478245-49-7)
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- 4-(4-(5,5-Dimethyl-4,5-dihydrothiazol-2-yl)piperazin-1-yl)-6-(2,2,2-trifluoroethyl)thieno[2,3-d]pyrimidine (CAS 1454920-20-7)
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