4-(4-Bromo-1h-pyrazol-1-yl)benzonitrile CAS 1184544-36-2
| CAS No. | 1184544-36-2 |
| Molecular Formula | C10H6BrN3 |
| Molecular Weight | 248.08 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-(4-Bromo-1h-pyrazol-1-yl)benzonitrile.
4-(4-Bromo-1h-pyrazol-1-yl)benzonitrile (CAS 1184544-36-2) is a high-purity analytical reference standard with the molecular formula C10H6BrN3 and a molecular weight of 248.08 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, 4-(4-Bromo-1h-pyrazol-1-yl)benzonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 248.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C10H6BrN3 |
| Molecular Weight | 248.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related Bromo Standards
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Recommended Standards
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- [(2-Methoxyphenyl)methyl](2-methylpropyl)amine (CAS 869942-72-3)
- 1-(Pyridin-4-ylmethyl)-1H-indol-6-amine (CAS 1095600-77-3)
- 3-(Ethylthio)-2-[[4-(5-fluoro-2-pyridinyl)phenyl]methyl]-7,8-dihydro-5,7,7-trimethyl-2H-imidazo[1,2-α]pyrazolo[4,3-e]pyrimidin-4(5H)-one (CAS 1415809-03-8)
- 288262-62-4 n-20:4 l-serine meester (CAS 288262-62-4)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
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