Ethyl 3-methylquinoxaline-2-carboxylate CAS 3885-38-9
| CAS No. | 3885-38-9 |
| Molecular Formula | C12H12N2O2 |
| Molecular Weight | 216.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 216.24 g/mol gives Ethyl 3-methylquinoxaline-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 3-methylquinoxaline-2-carboxylate (CAS 3885-38-9), a certified reference material (molecular formula C12H12N2O2, MW 216.24 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H12N2O2, Ethyl 3-methylquinoxaline-2-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 216.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C12H12N2O2 |
| Molecular Weight | 216.24 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 6-Methylquinoxaline-2,3-dithiol (CAS 25625-62-1)
- 2-Ethyl-3-methylquinoxaline-5,8-diol (CAS 500562-90-3)
- 3-Acetyl-2-methylquinoxaline 1-oxide (CAS 61522-56-3)
- 3-Methylquinoxaline-2-carbohydrazide (CAS 61857-84-9)
- 2-Acetyl-3-methylquinoxaline 1-oxide (CAS 61522-57-4)
- 6-Methylquinoxaline-2,3-dicarboxylic acid (CAS 143663-15-4)
- 3-methylquinoxaline-6-carboxylic acid (CAS 155439-33-1)
- 2-methylquinoxaline-6-carboxylic acid (CAS 155439-35-3)
Recommended Standards
- Ethyl 3-Aminoquinoline-2-carboxylate (CAS 62235-59-0)
- Ethyl 3-phenyl-1H-pyrazole-5-carboxylate (CAS 5932-30-9)
- Ethyl 2-phenyl-1H-imidazole-4-carboxylate (CAS 32683-00-4)
- Ethyl 4-(1H-imidazol-2-yl)benzoate (CAS 210962-26-8)
- 2-(2-Chlorophenyl)-2-methylcyclopropan-1-amine hydrochloride (CAS 1333700-10-9)
- Triphenyltin fluoride, min. 97% (CAS 379-52-2)
- 1,2-Di-O-acetyl-5-O-benzoyl-3-deoxy-3-fluoro-D-ribofuranose (CAS 159099-24-8)
- 2-{1-(dimethylamino)-3-[4-(trifluoromethoxy)anilino]-2-propenylidene}malononitrile (CAS 338773-50-5)
- 4-{5H,6H,7H,8H,9H-[1,2,4]triazolo[4,3-a]azepin-3-yl}aniline (CAS 109220-81-7)
- Ethyl 2-(5-amino-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)acetate (CAS 467421-27-8)
- Methyl 2-methyl-2-(piperidin-4-yl)propanoate hydrochloride (CAS 861451-21-0)
- 4-Bromo-1-[(2-chloro-6-fluorophenyl)methyl]-1H-pyrazole-3-carboxylic acid (CAS 1281872-54-5)
- Dobutamine Impurity 59 (CAS CATO-C4X-129859)
- 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 18665070610 / Nicole.chen@cato-chem.com