5-Bromo-2,3-dimethoxybenzonitrile CAS 164670-73-9
| CAS No. | 164670-73-9 |
| Molecular Formula | C9H8BrNO2 |
| Molecular Weight | 242.07 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 5-Bromo-2,3-dimethoxybenzonitrile.
5-Bromo-2,3-dimethoxybenzonitrile (CAS 164670-73-9), molecular formula C9H8BrNO2 and molecular weight 242.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 5-Bromo-2,3-dimethoxybenzonitrile is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 242.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 5-Bromo-2,3-dimethoxybenzonitrile 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 | C9H8BrNO2 |
| Molecular Weight | 242.07 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 2-(3-Chlorophenyl)-2-methyloxirane (CAS 1427715-40-9)
- (2-((Furan-2-ylmethyl)amino)phenyl)methanol (CAS 1157547-16-4)
- 2-Chloro-N-(4-ethoxyphenyl)pyridine-3-sulfonamide (CAS 1156721-54-8)
- rel-(8R,8aS)-Octahydroindolizin-8-amine (CAS 1993250-73-9)
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