4-[5-(4-Bromophenyl)-1H-pyrazol-3-yl]benzonitrile CAS 888482-90-4
| CAS No. | 888482-90-4 |
| Molecular Formula | C16H10BrN3 |
| Molecular Weight | 324.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-[5-(4-Bromophenyl)-1H-pyrazol-3-yl]benzonitrile.
4-[5-(4-Bromophenyl)-1H-pyrazol-3-yl]benzonitrile (CAS 888482-90-4), molecular formula C16H10BrN3 and molecular weight 324.17 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H10BrN3, 4-[5-(4-Bromophenyl)-1H-pyrazol-3-yl]benzonitrile contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 324.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C16H10BrN3 |
| Molecular Weight | 324.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- N-ethylbenzene-1,2-disulfonamide (CAS 1094736-15-8)
- 6'-Bromo-8'-methyl-1'H-spiro[cyclopentane-1,3'-imidazo[1,5-a]pyridine]-1',5'(2'H)-dione (CAS 1849592-55-7)
- 4,6-dibenzamidobenzene-1,3-dicarboxylic acid (CAS 70553-45-6)
- 1-Propanaminium, N,N,N,2,2-pentamethyl-3-[(1-oxo-2-propen-1-yl)amino]-, methyl sulfate , polymer with 2-propenamide (CAS 75150-17-3)
- 1-Cinnamyl-4-(phenylsulfonyl)piperazine (CAS 5264-21-1)
- 6-Amino-2-(trifluoromethyl)pyridine-3-carbonitrile (CAS 1233243-98-5)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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