1-Chloro-2,5-diiodobenzene CAS 79887-23-3
| CAS No. | 79887-23-3 |
| Molecular Formula | C6H3ClI2 |
| Molecular Weight | 364.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-Chloro-2,5-diiodobenzene (CAS 79887-23-3) is a high-purity analytical reference standard with the molecular formula C6H3ClI2 and a molecular weight of 364.35 g/mol.
The molecular framework of 1-Chloro-2,5-diiodobenzene (C6H3ClI2) is characterized by chlorine/iodine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C6H3ClI2 |
| Molecular Weight | 364.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl/I-containing |
Related Chloro Standards
- 4-Chloro-1,2-diiodobenzene (CAS 1608-45-3)
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