2,4-Dibromo-6-ethynylaniline CAS 543740-86-9
| CAS No. | 543740-86-9 |
| Molecular Formula | C8H5Br2N |
| Molecular Weight | 274.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4-Dibromo-6-ethynylaniline (CAS 543740-86-9), molecular formula C8H5Br2N and molecular weight 274.94 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H5Br2N, 2,4-Dibromo-6-ethynylaniline 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 274.94 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 2,4-Dibromo-6-ethynylaniline under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H5Br2N |
| Molecular Weight | 274.94 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 4,5-Dibromo-1H-indole (CAS 1227571-79-0)
- 2,5-Dibromo-1H-indole (CAS 1240045-42-4)
- 2,4-Dibromo-6-methylbenzonitrile (CAS 1349718-92-8)
- 1,3-dibromo-2-isocyano-5-methylbenzene (CAS 730971-40-1)
- 2,4-Dibromo-6-methylphenyl isocyanide (CAS 730971-42-3)
- 2,6-Dibromo-4-methylbenzonitrile (CAS 59596-31-5)
- 3,5-Dibromo-1H-indole (CAS 81387-89-5)
- 3,6-Dibromo-1H-indole (CAS 74076-56-5)
Recommended Standards
- 2-(3,4-Dibromophenyl)acetonitrile (CAS 249647-27-6)
- 2-(2,6-Dibromophenyl)acetonitrile (CAS 67197-53-9)
- 2,4-dibromophenyl acetonitrile (CAS 66246-16-0)
- 2-(2,5-Dibromophenyl)acetonitrile (CAS 74533-21-4)
- 2-((3-(Butylcarbamoyl)phenyl)carbamoyl)benzoic acid (CAS 940488-50-6)
- N-(3-(4-Bromophenyl)-1-(4-phenylthiazol-2-yl)-1H-pyrazol-5-yl)benzamide (CAS 74101-27-2)
- 4-(Dimethylamino)-2-(methylthio)pyrimidine-5-carboxylicacid (CAS 1065075-76-4)
- 2-Amino-5-methylhex-4-enoic acid (CAS 3558-31-4)
- 2,4-Difluoro-3-(methoxycarbonyl)phenylboronic Acid (CAS 1190989-12-8)
- Methyl tert-butyl ether-<SUP>13</SUP>C<SUB>3</SUB> (CAS 1173023-78-3)
- N-((5-Methylthiophen-2-yl)methyl)-1H-tetrazol-5-amine (CAS 159709-13-4)
- Trazodone Impurity 74 HCl (CAS 66158-98-3)
- (R)-2,2,2-trifluoro-1-(3-methoxy-4-methylphenyl)ethan-1-amine (CAS 1270114-23-2)
- Liraglutide (CAS 204656-20-2)
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