7-Methylquinazolin-4(1H)-one
- CAS No.
- 75844-40-5
- Chemical Name:
- 7-Methylquinazolin-4(1H)-one
- Synonyms
- 7-Methyl-4(3H)-quinazolinone;7-methylquinazolin-4(3H)-one;7-METHYL-1H-QUINAZOLIN-4-ONE;7-Methylquinazolin-4(1H)-one;7-Methyl-4(1H)-quinazolinone;4(3H)-Quinazolinone, 7-methyl-;4(3H)-Quinazolinone, 7-methyl- >97%
- CBNumber:
- CB32454853
- Molecular Formula:
- C9H8N2O
- Molecular Weight:
- 160.17
- MDL Number:
- MFCD10699397
- MOL File:
- 75844-40-5.mol
- MSDS File:
- SDS
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264-P270-P301+P312-P330-P501 |
7-Methylquinazolin-4(1H)-one price More Price(33)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | S658324 | 7-METHYL-4(3H)-QUINAZOLINONE AldrichCPR | 75844-40-5 | 1 unit | $32.7 | 2026-04-30 | Buy |
| Sigma-Aldrich | S658324 | 7-METHYL-4(3H)-QUINAZOLINONE AldrichCPR | 75844-40-5 | 250MG | $29.8 | 2024-03-01 | Buy |
| Biosynth | ADA84440 | 7-Methylquinazolin-4(3H)-one | 75844-40-5 | 5g | $437.5 | 2026-06-04 | Buy |
| Matrix Scientific | 220324 | 7-Methylquinazolin-4(3H)-one | 75844-40-5 | 1.00g | $131 | 2026-05-18 | Buy |
| Matrix Scientific | 220324 | 7-Methylquinazolin-4(3H)-one | 75844-40-5 | 5.00g | $536 | 2026-05-18 | Buy |
7-Methylquinazolin-4(1H)-one Chemical Properties, Uses, Production
Synthesis
39549-79-6
77287-34-4
75844-40-5
General procedure for the synthesis of 7-methyl-4(3H)-quinazolinone from 2-amino-4-methylbenzamide (1, 4.0 mmol) and compound (CAS: 77287-34-4, 2, 6.0 mmol): a mixture of 2-amino-4-methylbenzamide (1), formamide (2), Yb(OTf)3 (0.20 mmol, 5.0 mol%) and a mixture of homotrimethylbenzene (5.0 mL) were placed in a 20 mL Pyrex flask, the unit was equipped with a magnetic stir bar and a reflux condenser, and the reaction was carried out under argon protection. The reaction mixture was stirred at 120-165 °C (oil bath temperature) for 6 hours. After completion of the reaction, the mixture was cooled to room temperature and analyzed by GLC, GC-MS (EI) and LC-MS (ESI). After removal of homotrimethylbenzene by evaporation under vacuum, the product (3) was purified by recrystallization from methanol/hexane and/or silica gel medium pressure column chromatography (eluent: ethyl acetate/hexane = 50/50 to 100% ethyl acetate. For 3j, eluent: methanol/chloroform = 50/50). The structures of the products were confirmed by 1H NMR (400 MHz) and 13C NMR (100 MHz, DMSO-d6). The analytical and spectral data of compounds 3a-e, 3f, 3g, 3h and 3j were in agreement with literature reports. The product 3i was characterized as follows.
References
[1] Heterocycles, 2015, vol. 90, # 2, p. 857 - 865
7-Methylquinazolin-4(1H)-one Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| China Langchem Inc. | 0086-21-58956006 | China | 7798 | 57 | |
| Baiyin Chengze Chemical Technology Co., Ltd. | +86 943-8535351 13389336721 | sales@chengzechem.com | China | 300 | 58 |
| shanghai aokchem co., ltd | 021-68712331 39130253 | aokchem@gmail.com | China | 332 | 58 |
| SynAsst Chemical. | 021-60343070 | China | 12731 | 55 | |
| shanghai cooperpharm co.,LTD . | +86-021-58975553 | sales@cooperpharm.com | China | 1210 | 56 |
| Bide Pharmatech Ltd. | 400-164-7117 18317119277 | product02@bidepharm.com | China | 40000 | 60 |
| ShangHai D&B Biological Science and Technology Co.Ltd | 400-008-9730,021-54359730 400-008-9730 | info@chemxyz.com | China | 3642 | 60 |
| Shanghai ChuangYan Chemical Technology Co., Ltd. | 021-11111111 11111111111 | 546919421@qq.com | China | 3769 | 55 |
| NovoChemy Ltd. | 86-(0)21-31261262 373522135 | sales@novochemy.com | China | 6491 | 58 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
View Latest Price from 7-Methylquinazolin-4(1H)-one manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-25 | 7-Methyl-4(1H)-quinazolinone
75844-40-5
|
$1.60-9.60 | 1kg | 99% | 100kg | ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD |
-
- 7-Methyl-4(1H)-quinazolinone
75844-40-5
- $1.60-9.60
- 99%
- ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
