4-{[(4-chlorophenyl)amino]methylidene}-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one CAS 240799-63-7
| CAS No. | 240799-63-7 |
| Molecular Formula | C12H12ClN3O2 |
| Molecular Weight | 265.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-{[(4-chlorophenyl)amino]methylidene}-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-{[(4-chlorophenyl)amino]methylidene}-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one (CAS 240799-63-7), molecular formula C12H12ClN3O2 and molecular weight 265.70 g/mol, is a CATO reference standard with documented purity and traceability.
4-{[(4-chlorophenyl)amino]methylidene}-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one (C12H12ClN3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
CATO manufactures 4-{[(4-chlorophenyl)amino]methylidene}-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H12ClN3O2 |
| Molecular Weight | 265.70 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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- 1-(2-chlorophenyl)-5-(propan-2-yl)-1H-1,2,4-triazole-3-carboxylic acid (CAS 1154372-69-6)
- 1-(2-chlorophenyl)-5-propyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 1154372-75-4)
- ethyl 5-(4-chlorophenyl)-1-methyl-1H-1,2,4-triazole-3-carboxylate (CAS 1283530-38-0)
- 2-(2-(3-Chlorophenyl)-5-methyloxazol-4-yl)-N-hydroxyacetimidamide (CAS 1370601-76-5)
- Ethyl 2-(3-(4-chlorophenyl)-1H-1,2,4-triazol-5-yl)acetate (CAS 168639-16-5)
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Recommended Standards
- 4-(5-(4-Chlorophenyl)-1,3,4-oxadiazol-2-yl)morpholine (CAS 29207-86-1)
- 4-Chloro-2-(3-methoxyphenyl)-5-(methylamino)pyridazin-3(2H)-one (CAS 84607-75-0)
- 3-(4-Chloro-3-methyl-1,2-oxazol-5-yl)-1-(4-methylphenyl)urea (CAS 866132-05-0)
- 4-Chloro-6-(2,3-dimethoxyphenyl)pyrimidin-2-amine (CAS 862168-16-9)
- 2-Ethyl-6-methoxy-4-methylphenol (CAS 90925-52-3)
- [1,1'-Biphenyl]-2,3,3',4'-tetracarboxylic acid (CAS 36978-40-2)
- 1-(4-Chlorobenzyl)piperidin-3-amine hydrochloride (CAS 1261233-87-7)
- 3-(Tert-butyl)picolinic acid (CAS 1211584-45-0)
- 1-(2,4-Dichlorophenyl)-3-(4-(methylthio)phenyl)propan-1-one (CAS 898781-69-6)
- 4-(4-Bromobenzamido)benzoic acid (CAS 156811-46-0)
- 2-Oxo-N,N-diphenyloxazolidine-3-sulfonamide (CAS 116943-67-0)
- n-Benzyl-5,6-dimethyl-3-oxo-2,3-dihydropyridazine-4-carboxamide (CAS 1181510-88-2)
- Hexadecane-1-sulfonyl chloride (CAS 38775-38-1)
- C-telopeptide (CAS 162929-64-8)
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