2-((6-Methoxy-4-methylquinazolin-2-yl)amino)quinazolin-4(1H)-one CAS 263746-98-1
| CAS No. | 263746-98-1 |
| Molecular Formula | C18H15N5O2 |
| Molecular Weight | 333.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-((6-Methoxy-4-methylquinazolin-2-yl)amino)quinazolin-4(1H)-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.
2-((6-Methoxy-4-methylquinazolin-2-yl)amino)quinazolin-4(1H)-one (CAS 263746-98-1), molecular formula C18H15N5O2 and molecular weight 333.34 g/mol, is a CATO reference standard with documented purity and traceability.
2-((6-Methoxy-4-methylquinazolin-2-yl)amino)quinazolin-4(1H)-one (C18H15N5O2) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H15N5O2 |
| Molecular Weight | 333.34 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 5 |
Related Methoxy Standards
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- 3-Methoxy-3'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-4-ol (CAS 1261898-94-5)
- 3-Methoxy-4'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-4-ol (CAS 1261899-07-3)
- 4-Methoxy-3'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-3-ol (CAS 1261941-70-1)
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Recommended Standards
- 1-Benzyl-4-hydroxy-3-(5-oxo-2,5-dihydro-1H-pyrazol-3-yl)-1,2-dihydroquinolin-2-one (CAS 866149-99-7)
- 2-(12,14-Dioxo-9,10-dihydro-9,10-[3,4]epipyrroloanthracen-13-yl)acetic acid (CAS 5472-26-4)
- (E)-({3-[(4,6-dimethoxypyrimidin-2-yl)oxy]-4-methoxyphenyl}methylidene)(ethoxy)amine (CAS 866154-93-0)
- 2-(4-(2,2-Dicyanovinyl)-2-methoxyphenoxy)-N-phenylacetamide (CAS 333341-47-2)
- 4-Bromo-7-methyl-5-azaindole (CAS 1082040-87-6)
- (5S)-5-{[(3-pyridinylmethyl)amino]methyl}-2-pyrrolidinone dihydrochloride (CAS 1609388-34-2)
- 2-[1-(5-aminopyridin-2-yl)piperidin-4-yl]ethan-1-ol (CAS 1425377-34-9)
- H-Phe-Gly-Gly-OH (CAS 23576-42-3)
- N-(5-Aminopyrimidin-2-yl)benzamide (CAS 331806-98-5)
- 6-Cyclobutyl-N-(propan-2-yl)pyrimidin-4-amine (CAS 2098139-11-6)
- 2-(4-tert-Butylphenyl)-4H-3,1-benzoxazin-4-one (CAS 117145-55-8)
- Promethazine Impurity 40 (CAS 98025-87-7)
- 5-Methyl-N-(quinolin-3-yl)pyrazine-2-carboxamide (CAS 606096-92-8)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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