Difuro[3,4-b:3',4'-e]pyrazine-1,3,5,7-tetraone CAS 2420-92-0
| CAS No. | 2420-92-0 |
| Molecular Formula | C8N2O6 |
| Molecular Weight | 220.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Difuro[3,4-b:3',4'-e]pyrazine-1,3,5,7-tetraone (CAS 2420-92-0), a certified reference material (molecular formula C8N2O6, MW 220.10 g/mol) for analytical method development and quality control.
Structurally, Difuro[3,4-b:3',4'-e]pyrazine-1,3,5,7-tetraone (C8N2O6) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 220.10 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C8N2O6 |
| Molecular Weight | 220.10 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 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Difuro Standards
Recommended Standards
- 6-(tert-Butyl)-3,5-dichloropyridin-2(1H)-one (CAS 2416992-27-1)
- N-(sec-Butyl)-2,6-dichloropyrimidin-4-amine (CAS 89099-64-9)
- 5-Butyl-4,6-dichloropyrimidin-2-amine (CAS 500113-92-8)
- N-[2-(3,4-Dichlorophenoxy)ethyl]-N-methylamine (CAS 36507-37-6)
- 1-Methanesulfonyl-3-methyl-piperazine (CAS 1267461-17-5)
- 2-(2-(Benzyloxy)ethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 137297-51-9)
- 2,6-Dibromo-3-fluorobenzoic acid (CAS 1806327-84-3)
- Methyl 2-(((benzyloxy)carbonyl)amino)-2-cyanoacetate (CAS 1934375-19-5)
- 2,3-Dichloro-5-fluorobenzodifluoride (CAS 1803806-99-6)
- (3-Chloro-5-iodophenyl)methanol (CAS 912343-40-9)
- 1-Methylpyrazole-5-sulfonamide (CAS 918335-69-0)
- Ethyl 11(E)-eicosenoate (CAS 2692622-85-6)
- Methyl 6-methoxy-1H-1,3-benzodiazole-2-carboxylate (CAS 1016163-41-9)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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