2-(2-Chloro-benzyl)-5-methyl-2,4-dihydro-pyrazol-3-one CAS 568555-62-4
| CAS No. | 568555-62-4 |
| Molecular Formula | C11H11ClN2O |
| Molecular Weight | 222.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(2-Chloro-benzyl)-5-methyl-2,4-dihydro-pyrazol-3-one (CAS 568555-62-4) is a high-purity analytical reference standard with the molecular formula C11H11ClN2O and a molecular weight of 222.67 g/mol.
Structurally, 2-(2-Chloro-benzyl)-5-methyl-2,4-dihydro-pyrazol-3-one (C11H11ClN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 222.67 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C11H11ClN2O |
| Molecular Weight | 222.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 4-Chloro-n-(4-cyanophenyl)butanamide (CAS 1016674-12-6)
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- 4-Chloro-7-methoxy-2-methylquinolin-8-amine (CAS 113698-10-5)
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Recommended Standards
- 2-(1-Chloroethyl)-5-(3-methylphenyl)-1,3,4-oxadiazole (CAS 847837-39-2)
- 2-(2-Chloroethyl)-6-methoxyquinazoline (CAS 2006277-23-0)
- 1-Chloro-7-methoxy-3,4-dihydronaphthalene-2-carbaldehyde (CAS 77664-95-0)
- 2-(4-Chlorophenyl)-6-methyl-4,5-dihydropyridazin-3(2H)-one (CAS 23442-66-2)
- Tert-butyl (6-azaspiro[2.5]Octan-4-yl)carbamate (CAS 1505064-38-9)
- 1-(4-Acetyl-3-methylpiperazin-1-yl)-2-chloroethanone (CAS 1353947-94-0)
- 1-(4-Ethylbenzoyl)-4-{[3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl]methyl}piperidine (CAS 1775303-15-5)
- [(2-Bromophenyl)methyl]triphenyl-phosphonium Bromide (CAS 36901-75-4)
- 4-(Carboxymethyl)cyclohexanecarboxylic acid (CAS 105836-76-8)
- 4-(2,5-Dimethyl-1H-pyrrol-1-yl)-3-methylaniline (CAS 797806-96-3)
- 5-Amino-1-Boc-3-methyl-1H-pyrazole (CAS 1065204-79-6)
- 4-chloro-2-(2,2,2-trifluoroethyl)pyrazolo[3,4-d]pyrimidine (CAS 1450917-13-1)
- 2-Amino-5-(difluoromethyl)-3-hydroxypyridine-4-sulfonamide (CAS 1805013-06-2)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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