| CAS No. | 570373-45-4 |
| Molecular Formula | C31H25Cl2N3O2 |
| Molecular Weight | 542.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
2-Chloro-N-(3-((3-chlorobiphenyl-4-yl)methyl)-2-ethyl-4-oxo-3,4-dihydroquinazolin-6-yl)benzamide (CAS 570373-45-4), molecular formula C31H25Cl2N3O2 and molecular weight 542.46 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-Chloro-N-(3-((3-chlorobiphenyl-4-yl)methyl)-2-ethyl-4-oxo-3,4-dihydroquinazolin-6-yl)benzamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 542.46 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 2-Chloro-N-(3-((3-chlorobiphenyl-4-yl)methyl)-2-ethyl-4-oxo-3,4-dihydroquinazolin-6-yl)benzamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
| Molecular Formula | C31H25Cl2N3O2 |
| Molecular Weight | 542.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |