Dipyrazolo[1,5-a:1',5'-d]pyrazine-4,9-dione CAS 138813-24-8
| CAS No. | 138813-24-8 |
| Molecular Formula | C8H4N4O2 |
| Molecular Weight | 188.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Dipyrazolo[1,5-a:1',5'-d]pyrazine-4,9-dione meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies Dipyrazolo[1,5-a:1',5'-d]pyrazine-4,9-dione (CAS 138813-24-8), a certified reference material (molecular formula C8H4N4O2, MW 188.14 g/mol) for analytical method development and quality control.
Dipyrazolo[1,5-a:1',5'-d]pyrazine-4,9-dione (C8H4N4O2) 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C8H4N4O2 |
| Molecular Weight | 188.14 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 6-Cyanopyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 1315363-86-0)
- 1,1-Difluoro-4-trifluoromethyl-cyclohexane (CAS 1416351-96-6)
- 1,1,1-Trifluoro-2-((2-methoxyethoxy)methoxy)ethane (CAS 130156-55-7)
- Ethyl 5-nitro-4,5-dihydroisoxazole-3-carboxylate (CAS 155088-39-4)
- (4R)-1-methylazepan-4-amine (CAS 2165789-65-9)
- 2-(4-Chlorophenoxy)-2,2-difluoro-N-(2-fluorophenyl)acetamide (CAS 250714-69-3)
- 2-Ethynyl-2,5,5-trimethyl-3,4,4a,10b-tetrahydro-2H,5H-pyrano[3,2-c]chromene (CAS 320784-74-5)
- 2-(Difluoromethyl)-5-hydroxy-3-methoxypyridine (CAS 1805328-14-6)
- N1,N2-Bis(2,6-dimethylphenyl)ethane-1,2-diamine (CAS 72991-60-7)
- (2-(Methylthio)phenyl)(pyridin-2-yl)methanol (CAS 1443343-73-4)
- (2E)-N-(4-Bromo-3-methylphenyl)-3-(4-propoxyphenyl)prop-2-enamide (CAS 882084-18-6)
- (r)-2-(1-Amino-2-hydroxyethyl)-4,5-dimethylphenol (CAS 1212944-65-4)
- 2-((9,10-Dioxo-9,10-dihydroanthracen-1-yl)amino)benzoic acid (CAS 19795-96-1)
- Insulin aspart (CAS 116094-23-6)
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