4-Chloro-N-[(4E)-2-oxo-3-phenyl-1,2,3,4-tetrahydroquinazolin-4-ylidene]benzene-1-sulfonamide CAS 478044-04-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 478044-04-1 |
| Molecular Formula | C20H14ClN3O3S |
| Molecular Weight | 411.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-N-[(4E)-2-oxo-3-phenyl-1,2,3,4-tetrahydroquinazolin-4-ylidene]benzene-1-sulfonamide (CAS 478044-04-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H14ClN3O3S. Molecular weight: 411.86 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H14ClN3O3S |
| Molecular Weight | 411.86 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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