1-Cyclopentyl-3-(2,6-difluoro-3,5-dimethoxyphenyl)-7-(methylsulfinyl)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one CAS 651734-99-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 651734-99-5 |
| Molecular Formula | C20H22F2N4O4S |
| Molecular Weight | 452.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-Cyclopentyl-3-(2,6-difluoro-3,5-dimethoxyphenyl)-7-(methylsulfinyl)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one (CAS 651734-99-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C20H22F2N4O4S. Molecular weight: 452.47 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C20H22F2N4O4S |
| Molecular Weight | 452.47 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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Recommended Standards
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