7-Chloro-2-methyl-3-(m-tolyl)quinazolin-4(3H)-one CAS 62820-64-8
| CAS No. | 62820-64-8 |
| Molecular Formula | C16H13ClN2O |
| Molecular Weight | 284.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 284.74 g/mol gives 7-Chloro-2-methyl-3-(m-tolyl)quinazolin-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 7-Chloro-2-methyl-3-(m-tolyl)quinazolin-4(3H)-one (CAS 62820-64-8), a certified reference material (molecular formula C16H13ClN2O, MW 284.74 g/mol) for analytical method development and quality control.
Based on its molecular formula C16H13ClN2O, 7-Chloro-2-methyl-3-(m-tolyl)quinazolin-4(3H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 284.74 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Chloro-2-methyl-3-(m-tolyl)quinazolin-4(3H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H13ClN2O |
| Molecular Weight | 284.74 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 7-(5-Chloro-2-methoxyphenyl)-7-oxoheptanoic acid (CAS 951889-82-0)
- 7-Chloro-2-methyl-3-(p-tolyl)quinazolin-4(3H)-one (CAS 62820-65-9)
- 7-(4-Chloro-2-methoxyphenyl)-7-oxoheptanoic acid (CAS 951889-74-0)
- 7-Chloro-3-(4-methylbenzyl)quinazolin-4(3H)-one (CAS 302913-31-1)
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