2,6-Dibromonaphthalene CAS 13720-06-4
| CAS No. | 13720-06-4 |
| Molecular Formula | C10H6Br2 |
| Molecular Weight | 285.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,6-Dibromonaphthalene (C10H6Br2) contains bromine substitution, an aromatic ring 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.
2,6-Dibromonaphthalene (CAS 13720-06-4), molecular formula C10H6Br2 and molecular weight 285.96 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C10H6Br2 |
| Molecular Weight | 285.96 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-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 chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Br-containing |
Related Dibromonaphthalene Standards
- 2,3-Dibromonaphthalene (CAS 13214-70-5)
- 1,6-Dibromonaphthalene, 97% (CAS 19125-84-9)
- 1,2-Dibromonaphthalene, 97% (CAS 5438-13-1)
- 1,3-Dibromonaphthalene, 97% (CAS 52358-73-3)
- 1,5-Dibromonaphthalene (CAS 7351-74-8)
- 1,7-Dibromonaphthalene (CAS 58258-65-4)
- 2,7-Dibromonaphthalene, 97% (CAS 58556-75-5)
- 1,8-Dibromonaphthalene (CAS 17135-74-9)
Recommended Standards
- 2-bromo-1-(5-bromopyrazin-2-yl)ethan-1-one (CAS 1351334-94-5)
- 1,3-Dibromoazulene (CAS 14658-95-8)
- 3,5-Dibromo-4-fluorobenzenethiol (CAS 1806295-61-3)
- 2,5-Dibromo-4-fluorobenzenethiol (CAS 1263376-15-3)
- (E)-carboxyiminocarbamic acid 1,2-Diazenedicarboxylic acid 4910-62-7 NSC72982 (CAS 4910-62-7)
- 1-(4-Iodo-5-methoxy-2-nitrophenyl)-2,2-dimethylpropan-1-ol (CAS 1427311-72-5)
- tert-Butyl 3-fluoro-3-(hydroxymethyl)pyrrolidine-1-carboxylate (CAS 1262410-84-3)
- Racemic-(1S,3S,4S,5R)-2-(tert-butoxycarbonyl)-5-fluoro-2-azabicyclo[2.2.2]octane-3-carboxylic acid (CAS 1290625-57-8)
- Edoxaban Impurity 33 (CAS 349125-14-0)
- 2, 3, 4- Trichlorobenzenemethanamine (CAS 1261650-37-6)
- 5-(1-Allyl-2-oxoindolin-3-ylidene)-2-(4-ethoxyphenyl)thiazolo[3,2-b][1,2,4]triazol-6(5H)-one (CAS 538340-83-9)
- Taurine bromamine (CAS 52316-57-1)
- 7-(3-Oxocyclohexyl)heptanenitrile (CAS 898784-99-1)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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