2-Chloro-3-iodonaphthalene CAS 91799-72-3
| CAS No. | 91799-72-3 |
| Molecular Formula | C10H6ClI |
| Molecular Weight | 288.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chloro-3-iodonaphthalene is closely related to chlorine/iodine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Chloro-3-iodonaphthalene (CAS 91799-72-3), a certified reference material (molecular formula C10H6ClI, MW 288.51 g/mol) for analytical method development and quality control.
2-Chloro-3-iodonaphthalene (C10H6ClI) contains chlorine/iodine 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.
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 | C10H6ClI |
| Molecular Weight | 288.51 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.) | 1983 |
| Halogen Content | Cl/I-containing |
Related Chloro Standards
- 6-Chloro-1-iodonaphthalene (CAS 1261868-37-4)
- 4-Chloro-2-iodobenzoic acid (CAS 13421-13-1)
- 1-Chloro-5-iodonaphthalene (CAS 159334-77-7)
- 1-Chloro-2-iodonaphthalene (CAS 701277-07-8)
- 1-Chloro-4-iodonaphthalene (CAS 6334-37-8)
- 1-Chloro-7-iodonaphthalene (CAS 856205-19-1)
- 1-Chloro-8-iodonaphthalene (CAS 91799-71-2)
- 2-Chloro-1-iodonaphthalene (CAS 70109-78-3)
Recommended Standards
- 2-Chloro-6-iodonaphthalene (CAS 858024-79-0)
- 5a(H)-Pregnane (CAS 641-85-0)
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- 7-Chloro-1-iodonaphthalene (CAS 70109-79-4)
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