4-Benzyl-5-(pyridin-4-yl)-1H-pyrazol-3(2H)-one CAS 90280-29-8
| CAS No. | 90280-29-8 |
| Molecular Formula | C15H13N3O |
| Molecular Weight | 251.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-Benzyl-5-(pyridin-4-yl)-1H-pyrazol-3(2H)-one (CAS 90280-29-8) is a high-purity analytical reference standard with the molecular formula C15H13N3O and a molecular weight of 251.28 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 4-Benzyl-5-(pyridin-4-yl)-1H-pyrazol-3(2H)-one is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 251.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C15H13N3O |
| Molecular Weight | 251.28 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.) | 1982 |
| Nitrogen Atoms | 3 |
Related Benzyl Standards
- (1-Phenyl-3-(pyridin-3-yl)-1H-pyrazol-4-yl)methanol (CAS 36640-64-9)
- Phenyl(5-(pyridin-2-yl)-1H-1,2,4-triazol-3-yl)methanamine (CAS 1707566-81-1)
- Phenyl(5-(pyridin-3-yl)-1H-1,2,4-triazol-3-yl)methanamine (CAS 1708081-10-0)
- 4-(Pyridin-3-yloxy)benzenesulfonic acid (CAS 1000340-09-9)
- (Pyridin-3-ylcarbamothioyl)-D-proline (CAS 1443438-29-6)
- 4-(Pyridin-4-yloxy)benzenesulfonicacid (CAS 192329-80-9)
- 3-((5-(Pyridin-4-yl)-1,3,4-oxadiazol-2-yl)thio)propanoic acid (CAS 604740-20-7)
- 2-(Pyridin-2-yl)-1,7-naphthyridine-4-carboxylic acid (CAS 855521-67-4)
Recommended Standards
- 4-Benzyl-3-phenylisoxazol-5(4H)-one (CAS 72705-83-0)
- 4-Benzyloxyindole-3-carbaldehyde (CAS 7042-71-9)
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- 4-Cyanophenyl 4-ethylbenzoate (CAS 56131-48-7)
- 5-(azidomethyl)oxolan-2-one (CAS 24211-53-8)
- Tert-butyl 2-aminohexanoate (CAS 17389-04-7)
- n-(Adamantan-1-ylmethyl)-2-chloro-n-methylacetamide (CAS 1184505-71-2)
- Solasurine (CAS 27028-76-8)
- Methyl 3-((tert-butoxycarbonyl)amino)-4-hydroxybutanoate (CAS 942297-60-1)
- (6-Aminopyridin-2-yl)dimethylphosphine oxide (CAS 2361974-00-5)
- 4-Amino-3-hydroxybenzonitrile (CAS 55586-26-0)
- N-(4-(2-fluorophenyl)piperazine-1-carbonothioyl)-4-methylbenzamide (CAS 497061-04-8)
- 7-Chloro-benzo[d]imidazo-[2,1-b]thiazole-2-carbaldehyde (CAS 623906-25-2)
- Insulin Degludec Impurity 2 (CAS CATO-C4X-21572)
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