1,8-Dichloronaphthalene CAS 2050-74-0
| CAS No. | 2050-74-0 |
| Molecular Formula | C10H6Cl2 |
| Molecular Weight | 197.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,8-Dichloronaphthalene (CAS 2050-74-0), a certified reference material (molecular formula C10H6Cl2, MW 197.06 g/mol) for analytical method development and quality control.
1,8-Dichloronaphthalene (C10H6Cl2) contains chlorine 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 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.
As a certified reference material (CRM), 1,8-Dichloronaphthalene 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 | C10H6Cl2 |
| Molecular Weight | 197.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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.) | 1957 |
| Halogen Content | Cl-containing |
Related Dichloronaphthalene Standards
- 1,3-Dichloronaphthalene (CAS 2198-75-6)
- 1,6-Dichloronaphthalene (CAS 2050-72-8)
- 1,7-Dichloronaphthalene (CAS 2050-73-9)
- 2,6-Dichloronaphthalene (CAS 2065-70-5)
- 2,7-Dichloronaphthalene (CAS 2198-77-8)
- 1,4-Dichloronaphthalene (CAS 1825-31-6)
- 1,5-Dichloronaphthalene (CAS 1825-30-5)
- 1,2-Dichloronaphthalene (CAS 2050-69-3)
Recommended Standards
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