N-(4-chloro-2-methylphenyl)-1-(3-chlorophenyl)-5-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxamide CAS 477713-32-9
| CAS No. | 477713-32-9 |
| Molecular Formula | C23H15Cl4N3O |
| Molecular Weight | 491.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), N-(4-chloro-2-methylphenyl)-1-(3-chlorophenyl)-5-(3,4-dichlorophenyl)-1H-pyrazole-3-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.
N-(4-chloro-2-methylphenyl)-1-(3-chlorophenyl)-5-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxamide (CAS 477713-32-9), molecular formula C23H15Cl4N3O and molecular weight 491.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, N-(4-chloro-2-methylphenyl)-1-(3-chlorophenyl)-5-(3,4-dichlorophenyl)-1H-pyrazole-3-carboxamide (C23H15Cl4N3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 491.20 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C23H15Cl4N3O |
| Molecular Weight | 491.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related N Standards
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Recommended Standards
- 2-((Tert-butoxyamino)methylene)-N1,N3-bis(2,4-dichlorophenyl)malonamide (CAS 400078-15-1)
- N,N'-Bis(2,4-dichlorophenyl)-2-{[(3-methoxypropyl)amino]methylidene}propanediamide (CAS 339276-42-5)
- (2E)-3-{4-[(4-bromophenyl)methoxy]phenyl}-N-[(3,4-dichlorophenyl)methyl]prop-2-enamide (CAS 477889-09-1)
- Hexyl 6-bromo-2-(4-bromophenyl)quinoline-4-carboxylate (CAS 355419-72-6)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-isopropyl-2-methylthiophen-3-yl)boronate (CAS 2223029-38-5)
- 2-{[(tert-butoxy)carbonyl]amino}-2-cyclopentylacetic acid (CAS 35264-06-3)
- [Des-Pro7]-Atosiban TFA Salt (CAS CATO-C4X-229318)
- Ethyl 2-Methyl-5-nitronicotinate (CAS 51984-71-5)
- 2-(2-(Trifluoromethyl)phenyl)acetamide (CAS 34779-65-2)
- trans-cyclobutane-1,2-dicarbonitrile (CAS 3211-20-9)
- 1-Bromo-2-chloro-4-ethoxy-3-methylbenzene (CAS 2379322-33-3)
- Diisopentyldisulfide (CAS 2051-04-9)
- 4-bromo-5-(chlorosulfonyl)thiophene-2-carboxylic acid (CAS 1306604-23-8)
- Insulin B (22-25) (CAS 34367-73-2)
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