3-(4-Bromophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-5-amine CAS 956705-44-5
| CAS No. | 956705-44-5 |
| Molecular Formula | C15H10BrCl2N3 |
| Molecular Weight | 383.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(4-Bromophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-5-amine (CAS 956705-44-5), molecular formula C15H10BrCl2N3 and molecular weight 383.07 g/mol, is a CATO reference standard with documented purity and traceability.
3-(4-Bromophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-5-amine (C15H10BrCl2N3) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-(4-Bromophenyl)-1-(2,4-dichlorophenyl)-1H-pyrazol-5-amine 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 | C15H10BrCl2N3 |
| Molecular Weight | 383.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 1-(6-Bromohexyloxy)-4-iodobenzene (CAS 303092-94-6)
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- Crisaborole impurity 109 (CAS CATO-C4X-2021109)
- n-(2-Bromo-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)pivalamide (CAS 1309980-68-4)
- Methyl 3-(2-methoxyphenyl)propiolate (CAS 7517-83-1)
- 3,5-Dihydroxy-6,7,8-trimethoxy-2-phenyl-4H-chromen-4-one (CAS 14221-65-9)
- 16:0 LysylPG (CAS 1246303-06-9)
- 2-(Furan-2-yl)pyrrolidine oxalate (CAS 1177338-75-8)
- 2,4-Dimethyl-7H-chromen-7-one (CAS 465537-87-5)
- 7-Chloro-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic Acid (CAS 100361-18-0)
- Tert-butyl 4-(((3-nitropyridin-2-yl)amino)methyl)piperidine-1-carboxylate (CAS 939986-18-2)
- N,3-dimethylimidazol-4-amine (CAS 344323-05-3)
- (1R,6S)-3-Methyl-6-(prop-1-en-2-yl)cyclohex-2-en-1-ol (CAS 4017-77-0)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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