2-Oxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-6-carboxylic Acid CAS 1256835-18-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1256835-18-3 |
| Molecular Formula | C8H6N2O4 |
| Molecular Weight | 194.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-6-carboxylic Acid (CAS 1256835-18-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H6N2O4. Molecular weight: 194.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O4 |
| Molecular Weight | 194.14 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- 2,3-Dihydro-2-oxo-1H-pyrido[2,3-β][1,4]oxazine-7-carboxylic Acid (CAS 615568-49-5)
- 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carboxylic acid (CAS 337463-89-5)
- (4-oxo-4,5-dihydro-1H-pyrazolo[3,4-d]pyrimidin-1-yl)acetic acid (CAS 1311578-05-8)
- 2-(6-Oxo-1,6-dihydro-9H-purin-9-yl)acetic acid (CAS 6298-53-9)
- 3-Methyl-2,3-dihydro-1,4-benzodioxine-2-carboxylic acid (CAS 103204-87-1)
- 2-(2,3-Dihydro-1-benzofuran-7-yl)-2-hydroxyacetic acid (CAS 1594835-92-3)
- 2,3-Dihydro-1,4-benzodioxin-2-acetic acid (CAS 18505-92-5)
- 2-(2,3-Dihydro-1,4-benzodioxin-5-yl)acetic acid (CAS 274910-20-2)
Recommended Standards
- 2-(4,5-Dihydroxy-2-nitrophenyl)acetonitrile (CAS 117568-28-2)
- 2-(5,6-Difluoro-1H-benzo[d][1,2,3]triazol-1-yl)acetonitrile (CAS 1266962-64-4)
- 1-Isocyanato-4-methoxy-2-nitrobenzene 117162-85-3 9822AC C8H6N2O4 (CAS 117162-85-3)
- N,N-DIethyl-3-hydroxybenzene-1-sulfonamide (CAS 1082302-20-2)
- 3-(Ethoxycarbonyl)imidazo[1,2-a]pyridine-6-carboxylic acid (CAS 936637-98-8)
- 2-Methyl-6-nitrobenzofuran (CAS 87977-31-9)
- 1-(3,5-Difluoro-2-propoxyphenyl)ethanone (CAS 1443331-39-2)
- 1-(Benzenesulfonyl)-6-chloro-2-iodo-1H-pyrrolo[3,2-c]pyridine (CAS 1227267-17-5)
- 2-Iodo-4-oxatricyclo[4.2.1.0,3,7]nonan-5-one (CAS 14948-68-6)
- Casein kinase II peptide Substrate (CAS 154444-98-1)
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