Quinoxaline-2,3-dione CAS 63291-47-4
| CAS No. | 63291-47-4 |
| Molecular Formula | C8H4N2O2 |
| Molecular Weight | 160.13 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.
Quinoxaline-2,3-dione (CAS 63291-47-4), molecular formula C8H4N2O2 and molecular weight 160.13 g/mol, is a CATO reference standard with documented purity and traceability.
Quinoxaline-2,3-dione (C8H4N2O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C8H4N2O2 |
| Molecular Weight | 160.13 g/mol |
| Appearance | Pale yellow to 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 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.) | 1975 |
| Nitrogen Atoms | 2 |
Related Quinoxaline Standards
- Quinoxaline-5,8-dione (CAS 15250-38-1)
- quinoxaline-2,3-diamine (CAS 6640-47-7)
- Quinoxaline-2,6-diamine (CAS 951240-18-9)
- Quinoxaline-5,6-diamine (CAS 57436-95-0)
- Quinoxaline-5,7-diamine (CAS 89977-47-9)
- Quinoxaline-6,7-diamine (CAS 99584-28-8)
- Quinoxaline-6-carbaldehyde (CAS 130345-50-5)
- Quinoxaline-5-carbaldehyde (CAS 141234-08-4)
Recommended Standards
- Quinazoline-5,8-dione (CAS 24271-82-7)
- Terephthalonitrile N,N-dioxide (CAS 3729-34-8)
- Benzofuro[4,5-c][1,2,5]oxadiazole (CAS 217491-03-7)
- Pteridine-6-Carbaldehyde (CAS 4742-17-0)
- Tert-butyl 4-fluoro-4-((methylamino)methyl)piperidine-1-carboxylate (CAS 2168379-46-0)
- BOc-d-phg-osu (CAS 39249-27-9)
- N-cyclopropylpiperidine-3-carboxamide (CAS 1015446-13-5)
- 2-Propoxyisonicotinic acid (CAS 90610-31-4)
- Dobutamine Impurity 33 (CAS CATO-C4X-129833)
- DODECYL PROPANOATE (CAS 6221-93-8)
- 4-Amino-3-cyclopropoxybenzamide (CAS 1243469-34-2)
- (1r,4r)-N1-(2-Chlorobenzyl)cyclohexane-1,4-diamine (CAS 1286319-90-1)
- 4-(1-Ethyl-1H-benzo[d]imidazol-2-yl)butanoic acid (CAS 878436-85-2)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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