4-Acetyl-2-hexyl-5-methyl-1H-pyrazol-3(2H)-one CAS 141762-97-2
| CAS No. | 141762-97-2 |
| Molecular Formula | C12H20N2O2 |
| Molecular Weight | 224.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Acetyl-2-hexyl-5-methyl-1H-pyrazol-3(2H)-one (CAS 141762-97-2) is a high-purity analytical reference standard with the molecular formula C12H20N2O2 and a molecular weight of 224.30 g/mol.
Based on its molecular formula C12H20N2O2, 4-Acetyl-2-hexyl-5-methyl-1H-pyrazol-3(2H)-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 224.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H20N2O2 |
| Molecular Weight | 224.30 g/mol |
| Appearance | Off-white to pale 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 2 |
Related Acetyl Standards
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Recommended Standards
- (1-(2-(Azepan-1-yl)ethyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1415562-62-7)
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- 2',4',6'-Trimethyl-[1,1'-biphenyl]-2-carbaldehyde (CAS 141522-29-4)
- 4-(Cyclopropylmethyl)-1-oxa-4,9-diazaspiro[5.5]undecan-3-one (CAS 1422133-74-1)
- Methyl 5-bromo-3-(4-fluorophenyl)imidazo[1,2-a]pyridine-2-carboxylate hydrochloride (CAS 1355082-41-5)
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- (R)-8-Fluorochroman-4-amine (CAS 750571-31-4)
- 202114-53-2 Fmoc-Leu-OH-1-13C L-Leucine-1-13C, N-Fmoc N-(9-Fluorenylmethoxycarbonyl)-L-leucine-1-13C (CAS 202114-53-2)
- 3-[methyl(pentyl)amino]propanenitrile (CAS 919491-64-8)
- n-(2-Methoxybenzyl)-3-methylbutan-1-amine (CAS 932215-89-9)
- 2,2'-Thiobis(1-phenylethan-1-one) (CAS 2461-80-5)
- Ethyl 2-(ethylamino)-2-methyl-3-(1h-pyrazol-1-yl)propanoate (CAS 1248104-59-7)
- 4-Benzyl-4-methylcyclohex-2-enone (CAS 1207111-35-0)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
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