8-Chloro-2-(methylsulfonyl)pyrimido[5,4-d]pyrimidine CAS 1824276-64-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1824276-64-3 |
| Molecular Formula | C7H5ClN4O2S |
| Molecular Weight | 244.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Chloro-2-(methylsulfonyl)pyrimido[5,4-d]pyrimidine (CAS 1824276-64-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C7H5ClN4O2S. Molecular weight: 244.66 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C7H5ClN4O2S |
| Molecular Weight | 244.66 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 5-((5-Chlorothiophen-2-yl)methyl)-1,3,4-oxadiazol-2-amine (CAS 1706440-50-7)
- (S)-1-((S)-2-Acetamidopropanoyl)-N-((S)-1-amino-1-oxopropan-2-yl)-N-methylpyrrolidine-2-carboxamide (CAS 58595-31-6)
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- (2R,3R,4S,5R,6S)-2-(Acetoxymethyl)-4-(benzyloxy)-6-(phenylthio)tetrahydro-2H-pyran-3,5-diyl diacetate (CAS 158198-55-1)
- Tirzepatide Impurity 9 (CAS CATO-C4X-32409)
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