5-[1-(4-Chlorophenoxy)ethyl]-N-phenyl-1H-pyrazole-1-carboxamide CAS 321999-01-3
| CAS No. | 321999-01-3 |
| Molecular Formula | C18H16ClN3O2 |
| Molecular Weight | 341.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 341.79 g/mol gives 5-[1-(4-Chlorophenoxy)ethyl]-N-phenyl-1H-pyrazole-1-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-[1-(4-Chlorophenoxy)ethyl]-N-phenyl-1H-pyrazole-1-carboxamide (CAS 321999-01-3) is a high-purity analytical reference standard with the molecular formula C18H16ClN3O2 and a molecular weight of 341.79 g/mol.
Structurally, 5-[1-(4-Chlorophenoxy)ethyl]-N-phenyl-1H-pyrazole-1-carboxamide (C18H16ClN3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 341.79 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.
As a certified reference material (CRM), 5-[1-(4-Chlorophenoxy)ethyl]-N-phenyl-1H-pyrazole-1-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H16ClN3O2 |
| Molecular Weight | 341.79 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 |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenoxy Standards
- 5-(3-Chlorophenoxy)-1,3-dimethyl-N-phenyl-1H-pyrazole-4-carboxamide (CAS 303997-92-4)
- ((4-(2-Chlorophenoxy)phenyl)sulfonyl)glycine (CAS 606945-28-2)
- 4-(4-Chlorophenoxy)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxamide (CAS 338756-29-9)
- 2-(2-Chlorophenoxy)-6-(2-chlorophenyl)pyridine-3-carbonitrile (CAS 306977-95-7)
- 2-(2-Chlorophenoxy)-6-(4-chlorophenyl)pyridine-3-carbonitrile (CAS 252059-09-9)
- 1-(4-(4-Chlorophenoxy)phenyl)-4,4,4-trifluorobutane-1,3-dione (CAS 1806473-78-8)
- 2-(2-Chlorophenoxy)-N'-(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)acetohydrazide (CAS 946386-04-5)
- 5-{[2-(4-chlorophenoxy)phenyl]methylidene}-1,3-diazinane-2,4,6-trione (CAS 477856-85-2)
Recommended Standards
- 5-[(1,3-Dihydro-1,3-dioxo-2H-isoindol-2-yl)methyl]-2-thiophenesulfonyl chloride (CAS 332361-07-6)
- 5-Amino-1-(2-chlorobenzyl)-N-(m-tolyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899981-44-3)
- 5-Amino-1-(2-chlorobenzyl)-N-(p-tolyl)-1H-1,2,3-triazole-4-carboxamide (CAS 899736-99-3)
- 5-(2-Chlorophenyl)-N-(4-methoxybenzyl)furan-2-carboxamide (CAS 853330-28-6)
- (4aR,7aR)-6-Methyloctahydro-1H-pyrrolo[3,4-b]pyridine (CAS 1486465-48-8)
- N-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)pyridine-3-carboxamide (CAS 93001-40-2)
- 6-Bromo-4,8-dichloroquinoline-3-carbonitrile (CAS 886362-77-2)
- 7-Hydroxy-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS 913613-99-7)
- 1,3-Dihydrobenzo[c]thiophene-5-carboxylic acid 2,2-dioxide (CAS 1936499-21-6)
- Fmoc-1-aminocyclopentane-1-carboxylic acid (CAS 117322-30-2)
- 2-(Cyclohexylthio)-3-methyl-5-vinylpyridine (CAS 1355226-53-7)
- 2-Chloro-N-(2-hydroxyethyl)-4-(1H-pyrazol-1-yl)benzamide (CAS 1172238-65-1)
- 2-((4-Bromophenyl)sulfonyl)-3-methyl-1H-indole (CAS 1956371-73-5)
- (Tyr?)-C-Peptide (human) (CAS 57327-90-9)
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