5-isopropyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one CAS 64123-72-4
| CAS No. | 64123-72-4 |
| Molecular Formula | C12H14N2O |
| Molecular Weight | 202.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-isopropyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one (CAS 64123-72-4) is a high-purity analytical reference standard with the molecular formula C12H14N2O and a molecular weight of 202.25 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 5-isopropyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 202.25 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 | C12H14N2O |
| Molecular Weight | 202.25 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 2 |
Related isopropyl Standards
- N-Isopropyl-1H-indole-2-carboxamide (CAS 106024-54-8)
- 1-(1-Isopropyl-1H-Pyrrolo[2,3-C]Pyridin-3-Yl)-Ethanone (CAS 1221153-84-9)
- 4-(3-Isopropyl-1h-pyrazol-1-yl)phenol (CAS 1339158-51-8)
- 2-(3-Isopropyl-1h-pyrazol-1-yl)phenol (CAS 1343883-90-8)
- 4-Isopropyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbonitrile (CAS 1707679-59-1)
- 2-(1-Isopropyl-1H-pyrazol-4-yl)phenol (CAS 1781342-58-2)
- 1-(1-Isopropyl-1H-benzo[d]imidazol-2-yl)ethan-1-one (CAS 31539-67-0)
- 1-Isopropyl-3-phenyl-1h-pyrazol-5-ol (CAS 948-64-1)
Recommended Standards
- 5-Isopropyl-2-phenyl-1H-pyrazol-3(2H)-one (CAS 83957-86-2)
- 5-Methyl-2-phenethyl-2,4-dihydro-pyrazol-3-one (CAS 949-26-8)
- 5-Ethyl-6-methoxyquinolin-8-amine (CAS 705928-22-9)
- 5-Phenyl-4-propyl-1H-pyrazol-3(2H)-one (CAS 642462-45-1)
- 4-(chloromethyl)-1,3-dimethyl-1H-pyrazole (CAS 1119833-69-0)
- 2-azido-N-cyclopropyl-2-(4-fluorophenyl)acetamide (CAS 1240528-20-4)
- 2-Acetamido-9H-purin-6-yl diphenylcarbamate (CAS 112233-74-6)
- (3R,5S)-3,5-dimethylpiperazin-2-one (CAS 1260619-53-1)
- 2-Chloro-4-methoxybenzoyl chloride (CAS 50424-99-2)
- Oxazole, 2,2′-[(1S)-6,6′-dimethyl[1,1′-biphenyl]-2,2′-diyl]bis[4-(1,1-dimethylethyl)-4,5-dihydro-, (4S,4′S)- (CAS 173143-88-9)
- 2-Chloro-5-hydroxypyridine (CAS 41288-96-4)
- 2-chloro-N-(3-methyl-2-phenylbutyl)acetamide (CAS 1803590-33-1)
- 3-((2-Morpholinoethyl)sulfonyl)aniline (CAS 1044272-04-9)
- [Plus-β-Ala28]-Semaglutide (CAS CATO-C4X-2226221)
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