4-Bromo-2-methylbenzimidamide CAS 856166-20-6
| CAS No. | 856166-20-6 |
| Molecular Formula | C8H9BrN2 |
| Molecular Weight | 213.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-2-methylbenzimidamide (CAS 856166-20-6) is a high-purity analytical reference standard with the molecular formula C8H9BrN2 and a molecular weight of 213.07 g/mol.
The molecular framework of 4-Bromo-2-methylbenzimidamide (C8H9BrN2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9BrN2 |
| Molecular Weight | 213.07 g/mol |
| Appearance | Off-white to pale 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 4-Bromo-2,6-dimethylbenzaldehyde (CAS 5769-33-5)
- 4-Bromo-3,5-dimethylbenzaldehyde (CAS 400822-47-1)
- 4-Bromo-2,5-dimethylbenzaldehyde (CAS 88111-74-4)
- 4-Bromo-3-methylbenzimidamide (CAS 202805-69-4)
- 2-(Aminomethyl)-6-(difluoromethyl)pyridine-3-sulfonyl chloride (CAS 1805012-80-9)
- Methyl 2-methoxybenzimidate hydrochloride (CAS 1125846-36-7)
- 5-Bromo-3-methoxy-2-(pyridin-4-ylmethoxy)benzoic acid (CAS 923852-07-7)
- 3-Amino-3-cyclobutylpropanoic acid (CAS 887584-53-4)
- 3-Amino-n,n,5-trimethylisoxazole-4-sulfonamide (CAS 1354513-02-2)
- 2-((2-Amino-6-fluoro-9H-purin-9-yl)methoxy)ethanol (CAS 158012-47-6)
- 8-Chloro-5-methylchromane-3-carboxylic acid (CAS 1522857-41-5)
- 6-(Cyclohexylthio)-2-methylnicotinonitrile (CAS 1355175-38-0)
- 7-Methoxyquinoline-4-carbonitrile (CAS 861620-90-8)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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