1-Ethyl-4-hydroxy-N-(3-methoxyphenyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide CAS 303093-36-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303093-36-9 |
| Molecular Formula | C19H18N2O4 |
| Molecular Weight | 338.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Ethyl-4-hydroxy-N-(3-methoxyphenyl)-2-oxo-1,2-dihydroquinoline-3-carboxamide (CAS 303093-36-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C19H18N2O4. Molecular weight: 338.36 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C19H18N2O4 |
| Molecular Weight | 338.36 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 2-Hydroxy-N-(3-methyl-1H-pyrazol-5-yl)-4-oxo-1,6,7,11b-tetrahydro-4H-pyrido[2,1-a]isoquinoline-1-carboxamide (CAS 1240220-46-5)
- 1-(2-Hydroxy-2-phenylethyl)-N-(3-methoxyphenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 1396875-77-6)
- 5-Hydroxy-2-(naphthalen-2-yl)naphtho[1,2-b]furan-3-carbaldehyde (CAS 444790-52-7)
- 1-Hydroxy-8-methoxy-3-methyl-2-(3-oxobutyl)anthracene-9,10-dione (CAS 84340-89-6)
- 2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)cyclohexanecarboxylic acid (CAS 500533-92-6)
- 5-Hydroxy-7-(3-hydroxy-4-methoxyphenyl)-1-(3-hydroxyphenyl)hepta-1,4,6-trien-3-one (CAS 297160-27-1)
- 2-Hydroxy-6-(morpholine-4-sulfonyl)quinoline-4-carboxylic acid (CAS 380426-68-6)
- 3-(4-Hydroxy-2-methoxy-3-(3-methylbut-2-en-1-yl)phenyl)-2H-chromen-7-ol (CAS 161099-42-9)
Recommended Standards
- 1-Benzyl-3-(3,4-dimethoxyphenyl)-1h-pyrazole-4-carboxylic acid (CAS 956756-38-0)
- 2-((4-(Pyrrolidine-1-carbonyl)phenyl)carbamoyl)benzoic acid (CAS 940503-24-2)
- 1-Allyl-6,7-dimethoxy-3-phenylquinazoline-2,4(1H,3H)-dione (CAS 903468-92-8)
- Methyl 7-methoxy-2-oxo-2H-chromene-3-carboxylate (CAS 622823-37-4)
- 1-{2-[4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl]ethyl}pyrrolidin-2-one (CAS 1342834-87-0)
- 2,8-Diethyl-5,5-difluoro-1,7,9,10-tetramethyl-5H-5l4,6l4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinine-3-carbaldehyde (CAS 162844-74-8)
- 4-Methoxy-4-vinyltetrahydro-2H-pyran (CAS 761411-16-9)
- 1-ethyl-2-methylpiperazine (CAS 3366-27-6)
- 1,6-Bis(triethoxysilyl)hexane (CAS 52034-16-9)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
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 13829788188 / jacky.chen@cato-chem.com