1-Phenyl-3-(pyridin-3-yl)-4,5-dihydro-1H-pyrazol-5-one CAS 21683-61-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21683-61-4 |
| Molecular Formula | C14H11N3O |
| Molecular Weight | 237.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 1-Phenyl-3-(pyridin-3-yl)-4,5-dihydro-1H-pyrazol-5-one (CAS 21683-61-4) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C14H11N3O. Molecular weight: 237.26 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C14H11N3O |
| Molecular Weight | 237.26 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Related Phenyl Standards
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- [4-(5-Pyridin-3-yl-1H-1,2,4-triazol-3-yl)phenyl]amine (CAS 1018168-01-8)
- 3-(5-(Pyridin-2-yl)-1H-1,2,4-triazol-3-yl)aniline (CAS 1092305-59-3)
- 5-Phenyl-2-(pyridin-2-yl)-2,4-dihydro-3H-pyrazol-3-one (CAS 111987-96-3)
- 2-(3-(Pyridin-4-yl)-1H-1,2,4-triazol-5-yl)aniline (CAS 1216198-26-3)
- 3-[(pyridin-3-yl)amino]-1,2-dihydroisoquinolin-1-one (CAS 1246961-03-4)
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Recommended Standards
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- 1-Methyl-2-(pyridin-4-yl)quinazolin-4(1H)-one (CAS 60888-91-7)
- 4,12-BIs(di(3,5-xylyl)phosphino)-[2.2]-paracyclophane (CAS 957782-11-5)
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- 1-Fluoro-2-hydroxy-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one (CAS 2114341-47-6)
- Sodium 4-hydroxy-3-oxido-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate (CAS 93982-72-0)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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)
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