3-phenyl-4H-pyrazolo[1,5-a]pyrimidin-7-one CAS 40545-59-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 40545-59-3 |
| Molecular Formula | C12H9N3O |
| Molecular Weight | 211.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-phenyl-4H-pyrazolo[1,5-a]pyrimidin-7-one (CAS 40545-59-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C12H9N3O. Molecular weight: 211.22 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C12H9N3O |
| Molecular Weight | 211.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 3-Phenyl-3H-imidazo[4,5-b]pyridin-2-ol (CAS 41010-50-8)
- 3-Phenylimidazo[1,5-a]pyrazin-1-ol (CAS 793693-38-6)
- 3-Phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 42754-69-8)
- N-((1-(Thiophen-2-yl)cyclopropyl)methyl)-2-(trifluoromethyl)benzamide (CAS 1207029-10-4)
- Boc-Tyr(Bzl)-aldehyde (CAS 82689-15-4)
- 4-Chloro-5-((3-chlorobenzyl)oxy)-2-propylpyridazin-3(2H)-one (CAS 88094-04-6)
- 2,4-Dichloro-5-methylbenzoic acid methyl ester (CAS 1803805-37-9)
- 4-(1,3-Dithiolan-2-yl)phenyl 4-nitrobenzoate (CAS 329079-33-6)
- 2-Amino-3-(oxan-4-yl)propan-1-ol (CAS 1342501-16-9)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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