5-(2-Methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one CAS 485317-15-5
| CAS No. | 485317-15-5 |
| Molecular Formula | C10H10N2O2 |
| Molecular Weight | 190.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 5-(2-Methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 190.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 5-(2-Methoxyphenyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 485317-15-5), a certified reference material (molecular formula C10H10N2O2, MW 190.20 g/mol) for analytical method development and quality control.
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 | C10H10N2O2 |
| Molecular Weight | 190.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Methoxyphenyl Standards
- 5-(3-Methoxyphenyl)-1H-pyrazol-3(2H)-one (CAS 1082046-10-3)
- 5-(3-Methoxyphenyl)oxazol-2-amine (CAS 1226177-87-2)
- 5-(2-Methoxyphenyl)oxazol-2-amine (CAS 1226198-48-6)
- 3-(4-Methoxyphenyl)-1h-pyrazol-5-ol (CAS 124083-43-8)
- 5-(2-methoxyphenyl)-1,2-oxazol-3-amine (CAS 1267756-24-0)
- 1-(4-Methoxyphenyl)-1H-1,2,4-triazol-5-amine (CAS 1341386-35-3)
- 1-(3-Methoxyphenyl)-1h-1,2,3-triazol-4-amine (CAS 1481395-57-6)
- 3-(4-Methoxyphenyl)-1H-pyrazol-5(4H)-one (CAS 1578-89-8)
Recommended Standards
- 5-(2-Cyanopropan-2-yl)nicotinic acid (CAS 878742-36-0)
- 5-(2-Methoxyphenyl)-4h-1,2,4-triazol-3-amine (CAS 303192-36-1)
- 5-(1h-Imidazol-1-yl)-1,3-dimethyl-1h-pyrazole-4-carbaldehyde (CAS 713496-40-3)
- 5-(3-Ethoxyphenyl)-2H-tetrazole (CAS 568590-21-6)
- methyl 4-bromo-1H-1,3-benzodiazole-6-carboxylate (CAS 1354756-19-6)
- (3s,5r)-3-Cyclopropyl-5-methyl-2-oxo-pyrrolidine-3-carbonitrile (CAS 1462290-02-3)
- Topiroxostat Impurity 36 (CAS 35451-46-8)
- 5-(5-Chlorothiophen-2-yl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1339333-33-3)
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