5-[(4-Methoxyphenyl)methyl]-4-oxo-N-phenyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-3-carboxamide CAS 303986-79-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303986-79-0 |
| Molecular Formula | C21H20N4O3 |
| Molecular Weight | 376.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-[(4-Methoxyphenyl)methyl]-4-oxo-N-phenyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-3-carboxamide (CAS 303986-79-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C21H20N4O3. Molecular weight: 376.41 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C21H20N4O3 |
| Molecular Weight | 376.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
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Recommended Standards
- 4-Hydroxycarbazeran (CAS 96724-43-5)
- 6,6'-Dimethoxy-2,2'-dimethyl-[8,8'-biquinoline]-5,5'(1H,1'H)-dione (CAS 88840-45-3)
- 4-(2-(4-Morpholinophenylamino)pyrimidin-4-yl)benzoic acid (CAS 945749-71-3)
- Pazopanib Impurity 32 (CAS 35122-82-8)
- (2S)-1-[(tert-butoxy)carbonyl]-3,3-dimethylazetidine-2-carboxylic acid (CAS 1932195-22-6)
- Insulin aspart (CAS 116094-23-6)
- 3-methyl-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine (CAS 133405-86-4)
- A23187 free acid (CAS 52665-69-7)
- 5,6-Dimethyl-1H-imidazo[4,5-b]pyridine (CAS 116599-56-5)
- Insulin Pork(≥27 USP units/mg) (CAS 12584-58-6)
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 13829788188 / jacky.chen@cato-chem.com