6,7-Dimethoxy-4-methylquinazolin-2(1H)-one CAS 37528-49-7
| CAS No. | 37528-49-7 |
| Molecular Formula | C11H12N2O3 |
| Molecular Weight | 220.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,7-Dimethoxy-4-methylquinazolin-2(1H)-one (CAS 37528-49-7) is a high-purity analytical reference standard with the molecular formula C11H12N2O3 and a molecular weight of 220.22 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 6,7-Dimethoxy-4-methylquinazolin-2(1H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H12N2O3 |
| Molecular Weight | 220.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
Related Dimethoxy Standards
- 6,7-Dimethoxy-4-methylphthalazin-1(2H)-one (CAS 10001-36-2)
- 7,8-Dimethoxy-4-methyl-2H-chromen-2-one (CAS 14002-97-2)
- 5,7-Dimethoxy-2-methyl-chromen-4-one (CAS 26213-83-2)
- 5,8-Dimethoxy-3-methylquinoxalin-2-ol (CAS 67867-85-0)
- 6,7-Dimethoxy-2-methylquinazolin-4-ol (CAS 35241-23-7)
- 6,7-Dimethoxy-3-methylquinoxalin-2-ol (CAS 5762-66-3)
- 6,7-Dimethoxy-4-methylcoumarin (CAS 4281-40-7)
- 7,8-Dimethoxy-2-methyl-4H-chromen-4-one (CAS 56100-47-1)
Recommended Standards
- 6,8-Dimethoxynaphthalene-1,3-diol (CAS 64954-45-6)
- 6-ethoxy-2H-chromene-3-carboxylic acid (CAS 923191-81-5)
- 6-Ethoxy-7-methoxyquinazolin-4(3H)-one (CAS 577728-29-1)
- 6,7-difluoroquinoxaline-2-carboxylic acid (CAS 845782-63-0)
- 7-Chloro-2,2-dimethyl-2,3-dihydro-1-benzofuran (CAS 10178-55-9)
- 4-[(4-Fluorophenyl)sulfanyl]-5-methanesulfonyl-2-phenylpyrimidine (CAS 339106-29-5)
- dicarbonylcyclopentyliron iodide (CAS 12078-28-3)
- tert-Butyl 2,2-diethylhydrazine-1-carboxylate (CAS 55741-06-5)
- (5-Isopropylpyridin-2-yl)methanamine hydrochloride (CAS 1820906-24-8)
- 4-Hydroxy-N,N-dipropylbenzamide (CAS 194225-11-1)
- Cefadroxil EP Impurity F (D-isomer) (CAS 147103-95-5)
- 3-(3-Cyclopentyl-1-methyl-1h-1,2,4-triazol-5-yl)propan-1-amine (CAS 1343694-32-5)
- N-(1H-Indazol-6-yl)furan-2-carboxamide (CAS 110326-95-9)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com