5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(4-fluorobenzylidene)-1H-pyrazole-3-carbohydrazide CAS 634897-16-8
| CAS No. | 634897-16-8 |
| Molecular Formula | C24H18ClFN4O2 |
| Molecular Weight | 448.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(4-fluorobenzylidene)-1H-pyrazole-3-carbohydrazide (CAS 634897-16-8), molecular formula C24H18ClFN4O2 and molecular weight 448.88 g/mol, is a CATO reference standard with documented purity and traceability.
5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(4-fluorobenzylidene)-1H-pyrazole-3-carbohydrazide (C24H18ClFN4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(4-fluorobenzylidene)-1H-pyrazole-3-carbohydrazide 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 | C24H18ClFN4O2 |
| Molecular Weight | 448.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related Chlorobenzyl Standards
- 2-((4-Chlorobenzyl)thio)-8,9,13b,14-tetrahydro-6H-[1,2,4]triazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one (CAS 344262-99-3)
- 2-(1-(4-Chlorobenzyl)-2,5-dimethyl-1h-indol-3-yl)-N-(2-methoxypyridin-4-yl)-2-oxoacetamide (CAS 1006604-91-6)
- 3-(3-Chlorobenzyl)-6-((3-(4-methoxyphenyl)-1,2,4-oxadiazol-5-yl)methyl)-3,6-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one (CAS 1040639-00-6)
- (E)-1-(2-((4-chlorobenzyl)oxy)phenyl)-3-((4-(trifluoromethoxy)phenyl)amino)prop-2-en-1-one (CAS 551931-16-9)
- Methyl 2-((2-((4-chlorobenzyl)thio)-6-(methoxymethyl)pyrimidin-4-yl)thio)benzoate (CAS 338748-01-9)
- (E)-2-((4-chlorobenzyl)thio)quinoline-3-carbaldehyde O-(4-methylbenzoyl) oxime (CAS 692260-11-0)
- 5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(2-hydroxybenzylidene)-1H-pyrazole-3-carbohydrazide (CAS 634897-22-6)
- 1-(4-Chlorobenzyl)-3'-(4-methoxyphenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione (CAS 400081-74-5)
Recommended Standards
- 3-((2-Chlorophenoxy)methyl)-4-methyl-5-(((6-nitro-4H-benzo[d][1,3]dioxin-8-yl)methyl)thio)-4H-1,2,4-triazole (CAS 1427733-94-5)
- 5-(4-(Benzyloxy)phenyl)-N'-(2-chloro-6-fluorobenzylidene)-1H-pyrazole-3-carbohydrazide (CAS 302918-10-1)
- (2Z)-2-(4-Chlorobenzenesulfonyl)-3-[(9,10-dioxo-9,10-dihydroanthracen-1-yl)amino]prop-2-enenitrile (CAS 1025564-22-0)
- AST-1306 (CAS 897383-62-9)
- Hexane-diamine-N,N-diacetic Acid DiHCl salt (CAS 58534-57-9)
- 9-Methoxy-3,5-dihydrobenzo[e][1,4]oxazepin-2(1H)-one (CAS 1313712-67-2)
- 1-Isopropyl-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1006453-59-3)
- 2-Cyano-3-(2,4-dimethoxyphenyl)-N-(m-tolyl)propanamide (CAS 1260625-49-7)
- (3-Methylquinoxalin-2-yl)methyl 2H-chromene-3-carboxylate (CAS 1062089-15-9)
- 7-Azabicyclo[2.2.1]heptane-1-carboxamide (CAS 2126161-31-5)
- Methyl 2-(5-methylpyrimidin-4-yl)acetate (CAS 1806335-89-6)
- 5-Fluoro-2,2-dimethylchroman-4-one (CAS 170960-35-7)
- 2,2,2-Trichloro-1-(4-(4-fluorobenzoyl)-1H-pyrrol-2-yl)ethan-1-one (CAS 453557-67-0)
- T-Peptide (CAS 2022956-62-1)
Why CATO?
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