6-Ethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid CAS 36991-45-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 36991-45-4 |
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-Ethyl-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid (CAS 36991-45-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H10N2O3. Molecular weight: 218.21 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H10N2O3 |
| Molecular Weight | 218.21 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 6-Ethyl-3-nitroquinolin-4-ol (CAS 628284-99-1)
- 6-Ethyl-4-oxo-4H-chromene-2-carboxylic acid (CAS 5527-91-3)
- 6-Ethoxy-8-nitroquinoline (CAS 282547-59-5)
- 3-(Dimethylamino)-1-(thiophen-3-yl)propan-1-one (CAS 100860-96-6)
- 6-Methoxybenzo[b]thiophen-2-amine (CAS 1104630-89-8)
- 6-Chloro-3-(2,2,6,6-tetramethylpiperidin-4-yl)-3,4-dihydro-2H-[1,3]oxazino[5,6-h]quinoline (CAS 380192-95-0)
- Trelagliptin Impurity 53 (CAS 1812193-01-3)
- 2-((5-Benzyl-4-phenyl-4H-1,2,4-triazol-3-yl)thio)-N-(2-methoxyphenyl)acetamide (CAS 332907-37-6)
- N-Desbenzoyl-N-Tert-Butoxycarbonyl-N,O-Isopropylidene-3’-p-O-Benzyl-6,7-Dehydro Paclitaxel (CAS 1794640-74-6)
- Insulin degludec (CAS 844439-96-9)
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