2-(2-Bromobenzylidene)malononitrile CAS 2698-42-2
| CAS No. | 2698-42-2 |
| Molecular Formula | C10H5BrN2 |
| Molecular Weight | 233.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-Bromobenzylidene)malononitrile (C10H5BrN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, 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. 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).
2-(2-Bromobenzylidene)malononitrile (CAS 2698-42-2), molecular formula C10H5BrN2 and molecular weight 233.06 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2-(2-Bromobenzylidene)malononitrile 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 | C10H5BrN2 |
| Molecular Weight | 233.06 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.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromobenzylidene Standards
- 2-(3-Bromobenzylidene)malononitrile (CAS 2972-74-9)
- 2-(4-Bromobenzylidene)malononitrile (CAS 2826-24-6)
- 3-(4-Bromobenzylidene)pyrrolidine (CAS 1563808-27-4)
- 3-(4-Bromobenzylidene)azetidine (CAS 1508796-30-2)
- 3-(3-Bromobenzylidene)azetidine (CAS 1515162-05-6)
- N-(4-Bromobenzylidene)-4H-1,2,4-triazol-4-amine (CAS 32787-79-4)
- N-(3-Bromobenzylidene)aniline (CAS 18467-14-6)
- N-(2-Bromobenzylidene)aniline (CAS 41077-23-0)
Recommended Standards
- 1-(3-Bromopropyl)pyrimidine-2,4(1H,3H)-dione (CAS 22917-77-7)
- (7-Bromo-2-methyl-2,3-dihydropyrazolo[5,1-b]oxazol-2-yl)methanol (CAS 2894830-81-8)
- 2-(4-Bromo-1h-pyrazol-1-yl)-2-methylpropanoic acid (CAS 917569-72-3)
- (5-Bromo-2-hydroxy-1,3-phenylene)dimethanol (CAS 6296-63-5)
- 2-[2-(4-Benzylpiperazin-1-yl)ethyl]-2H,3H,4H-pyrido[3,2-b][1,4]oxazin-3-one (CAS 860611-76-3)
- 5-Bromo-3-phenyl-1-(o-tolyl)-1H-pyrazole (CAS 1245126-36-6)
- 2-(2-Chloro-5-nitrophenyl)-5-(4-(trifluoromethyl)phenyl)-1,3,4-oxadiazole (CAS 243644-36-2)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-(4-chloro-2-methylphenoxy)-2-pyrrolidinecarboxylic acid (CAS 869682-07-5)
- 2-Amino-N-((3-chloropyrazin-2-yl)methyl)acetamide (CAS 1353978-77-4)
- 5-(3-Oxo-1,3-dihydroisobenzofuran-5-yl)furan-2-carbaldehyde (CAS 591212-74-7)
- n-(1,2-Benzoxazol-3-yl)-3-chlorobenzamide (CAS 892697-17-5)
- 5-Chloro-3-isopropyl-1-methyl-1H-1,2,4-triazole (CAS 1556451-30-9)
- methyl 5-methoxy-6-methylpyrazine-2-carboxylate (CAS 2105943-99-3)
- (Des-His1,Glu?)-Glucagon (1-29) amide (human, rat, porcine) (CAS 110084-95-2)
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