1,3-Dibromo-5-[2-(3,5-dibromophenyl)ethynyl]benzene CAS 448895-60-1
| CAS No. | 448895-60-1 |
| Molecular Formula | C14H6Br4 |
| Molecular Weight | 493.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,3-Dibromo-5-[2-(3,5-dibromophenyl)ethynyl]benzene (CAS 448895-60-1), molecular formula C14H6Br4 and molecular weight 493.81 g/mol, is a CATO reference standard with documented purity and traceability.
1,3-Dibromo-5-[2-(3,5-dibromophenyl)ethynyl]benzene (C14H6Br4) contains bromine substitution, a polycyclic aromatic system. 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C14H6Br4 |
| Molecular Weight | 493.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
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Recommended Standards
- 3-(2-((4-Chlorobenzyl)oxy)phenyl)-1-((2,5-dichlorophenyl)sulfonyl)-1H-pyrazole (CAS 477713-43-2)
- Trioctyltin Chloride (CAS 2587-76-0)
- 2,4,5-Trichlorophenyl (1-((4-methoxyphenyl)sulfonyl)piperidin-4-yl)carbamate (CAS 672950-38-8)
- (8-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-1-oxa-4,8-diazaspiro[4.5]Decan-4-yl)(3-(trifluoromethyl)phenyl)methanone (CAS 338761-12-9)
- Di-Fmoc-2,6-diaminoheptanedioic acid (mixture ofisomers) (CAS 1198797-23-7)
- N-methyl-2,3-dihydro-1H-indene-2-sulfonamide (CAS 2137689-87-1)
- 1-(2-Bromo-5,6-dichloro-1H-indol-3-yl)ethanone (CAS 800400-79-7)
- 5-Bromo-4-fluoro-1H-pyrrolo[2,3-c]pyridine (CAS 1260383-04-7)
- 1-Bromo-3-cyclopropoxy-5-nitrobenzene (CAS 1243387-63-4)
- 5-tert-butylpyrazine-2-carboxylic acid (CAS 242813-48-5)
- 5-Mercapto-1-tetrazolylacetic Acid (CAS 57658-36-3)
- 4-(((4S,5R,6E,8E,10Z,13Z)-1-Carboxy-4-hydroxynonadeca-6,8,10,13-tetraen-5-yl)thio)benzoic acid (CAS 154978-38-8)
- Methyl 4,6-dibromo-5-hydroxypicolinate (CAS 64354-25-2)
- Des-Ser32-Tirzepatide (CAS CATO-CPTD788942)
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