4-Methyl-6-(phenylamino)-2-(m-tolyl)quinazoline-5,8-dione CAS 61416-84-0
| CAS No. | 61416-84-0 |
| Molecular Formula | C22H17N3O2 |
| Molecular Weight | 355.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 4-Methyl-6-(phenylamino)-2-(m-tolyl)quinazoline-5,8-dione (CAS 61416-84-0), a certified reference material (molecular formula C22H17N3O2, MW 355.39 g/mol) for analytical method development and quality control.
4-Methyl-6-(phenylamino)-2-(m-tolyl)quinazoline-5,8-dione (C22H17N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 4-Methyl-6-(phenylamino)-2-(m-tolyl)quinazoline-5,8-dione 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 | C22H17N3O2 |
| Molecular Weight | 355.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
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Recommended Standards
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