5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(2-methoxybenzylidene)-1H-pyrazole-3-carbohydrazide CAS 634897-36-2
| CAS No. | 634897-36-2 |
| Molecular Formula | C25H21ClN4O3 |
| Molecular Weight | 460.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(2-methoxybenzylidene)-1H-pyrazole-3-carbohydrazide is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(2-methoxybenzylidene)-1H-pyrazole-3-carbohydrazide (CAS 634897-36-2), a certified reference material (molecular formula C25H21ClN4O3, MW 460.91 g/mol) for analytical method development and quality control.
Structurally, 5-(4-((2-Chlorobenzyl)oxy)phenyl)-N'-(2-methoxybenzylidene)-1H-pyrazole-3-carbohydrazide (C25H21ClN4O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 460.91 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C25H21ClN4O3 |
| Molecular Weight | 460.91 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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 | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chlorobenzyl Standards
- 3-((4-Chlorobenzyl)thio)-5-(((2,6-dichlorobenzyl)sulfinyl)methyl)-4-methyl-4H-1,2,4-triazole (CAS 344271-72-3)
- Ethyl 4-((4-chlorobenzyl)oxy)-3-ethoxy-5-iodobenzoate (CAS 1706450-33-0)
- 2-((2-Chlorobenzyl)thio)-4-(2-chlorophenyl)-6-(p-tolyl)nicotinonitrile (CAS 337925-22-1)
- 3-((4-Chlorobenzyl)sulfonyl)-4-ethyl-5-((3-(trifluoromethyl)phenoxy)methyl)-4H-1,2,4-triazole (CAS 383146-74-5)
- N-(4-chlorobenzyl)-1-(4-phenylthiazol-2-yl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxamide (CAS 321998-61-2)
- 1-(4-Chlorobenzyl)-3-methyl-4-(3-(trifluoromethyl)benzoyl)-3,4-dihydroquinoxalin-2(1H)-one (CAS 317822-34-7)
- 3-(((4-Chlorobenzyl)thio)methyl)-5-((2,4-dichlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazole (CAS 344269-00-7)
- 3-(((4-Chlorobenzyl)thio)methyl)-5-((2,5-dichlorobenzyl)thio)-4-ethyl-4H-1,2,4-triazole (CAS 344270-03-7)
Recommended Standards
- 3-(4-Chlorophenyl)-11,12-dimethoxy-8,9,13b,14-tetrahydro-6H-pyrazolo[5'',1'':2',3']pyrimido[4',5':4,5]pyrido[2,1-a]isoquinolin-6-one (CAS 685107-16-8)
- 5-Chloro-N-((dimethylamino)methylene)-1-(4-nitrobenzyl)-3-phenyl-1H-indole-2-carboxamide (CAS 400081-33-6)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(7-chloro-1H-indol-3-yl)propanoic acid (CAS 2382374-53-8)
- Fmoc-6-chloro-D-tryptophan (CAS 925916-73-0)
- 3-Oxo-2,3-dihydrobenzo[d]isoxazole-5-carbonitrile (CAS 162035-85-0)
- 1,8-Dichloroperfluorooctane (CAS 647-25-6)
- N-(2-ethoxybenzyl)-N-(4H-1,2,4-triazol-4-yl)amine (CAS 445413-73-0)
- N-(5-iodopyridin-2-yl)isobutyramide (CAS 900762-63-2)
- 4-[4-(Trifluoromethyl)phenyl]-4H,5H,6H,7H-thieno[3,2-c]pyridine (CAS 213462-11-4)
- 2,3-Dimethyl-5-(2-methylbutyl)pyrazine (CAS 75492-01-2)
- (2-Methylpropyl)[(pyridin-2-yl)methyl]amine (CAS 892592-08-4)
- 3-(3,5-Dimethyl-1h-pyrazol-1-yl)-2-(methylamino)propanamide (CAS 1249961-54-3)
- 2-(3-cycloheptyl-1,2,4-oxadiazol-5-yl)morpholine hydrochloride (CAS 1423025-54-0)
- Casein kinase II peptide Substrate (CAS 154444-98-1)
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