3-Methoxypyrazine-2-carboxylic acid CAS 40155-47-3
| CAS No. | 40155-47-3 |
| Molecular Formula | C6H6N2O3 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Methoxypyrazine-2-carboxylic acid (CAS 40155-47-3) is a high-purity analytical reference standard with the molecular formula C6H6N2O3 and a molecular weight of 154.12 g/mol.
Based on its molecular formula C6H6N2O3, 3-Methoxypyrazine-2-carboxylic acid 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 154.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H6N2O3 |
| Molecular Weight | 154.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 2 |
Related Methoxypyrazine Standards
- 5-Methoxypyrazine-2-carboxylic Acid (CAS 40155-42-8)
- 6-Methoxypyrazine-2-carboxylic Acid (CAS 24005-61-6)
- 5-Methoxypyrazine-2-boronic acid, 97% (CAS 1207738-71-3)
- 6-Methoxypyrazine-2-boronic Acid (CAS 934346-27-7)
- N-Methoxypyrazine-2-carboxamide (CAS 115110-16-2)
- 5-Methoxypyrazine-2-carboxamide (CAS 19222-85-6)
- 5-Methoxypyrazine-2-carboximidamide (CAS 1344367-21-0)
- 5-Methoxypyrazine-2,3-dicarbonitrile (CAS 72111-80-9)
Recommended Standards
- 3-Methoxy-2-nitropyridine (CAS 20265-37-6)
- 3-Methyl-2-oxo-2H-pyran-6-carboxylic acid (CAS 3060-68-2)
- 3-Furanpyruvic acid (CAS 57200-26-7)
- 3-Methyl-5-nitropyridin-4-ol (CAS 856966-91-1)
- 1-Ethyl 4-methyl 2-oxosuccinate (CAS 174682-13-4)
- 5-bromo-7-chloro-1H-pyrazolo[3,4-c]pyridine (CAS 1416374-15-6)
- 2-Cyclopropyl-2,2-difluoroacetic acid (CAS 1557661-16-1)
- (R)-3-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic acid (CAS 1217818-53-5)
- Oil red O (CAS 1320-06-5)
- 4-Chloropyridine-3-sulfonic acid (CAS 51498-38-5)
- Anisyl formate (CAS 122-91-8)
- (2S,4R)-4-(3,4-dichlorobenzyl)pyrrolidine-2-carboxylic acid (CAS 1049981-41-0)
- 2-(2-Isopropylthiazol-5-yl)ethanamine (CAS 1513046-23-5)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
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