3-Chloro-2-iodophenol CAS 858854-82-7
| CAS No. | 858854-82-7 |
| Molecular Formula | C6H4ClIO |
| Molecular Weight | 254.45 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.
3-Chloro-2-iodophenol (CAS 858854-82-7), molecular formula C6H4ClIO and molecular weight 254.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Chloro-2-iodophenol (C6H4ClIO) is characterized by a hydroxyl group, an ether linkage, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3-Chloro-2-iodophenol 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 | C6H4ClIO |
| Molecular Weight | 254.45 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1987 |
| Halogen Content | Cl/I-containing |
Related Chloro Standards
- 5-Chloro-2-iodophenol (CAS 136808-72-5)
- 2-Chloro-3-iodophenol (CAS 666727-31-7)
- 2-Chloro-5-iodophenol (CAS 289039-26-5)
- 3-Chloro-4-iodophenol (CAS 855403-42-8)
- 3-Chloro-5-iodophenol (CAS 861347-86-6)
- 4-Chloro-2-iodophenol, 98% (CAS 71643-66-8)
- 4-Chloro-3-iodophenol (CAS 202982-72-7)
- 2-Chloro-4-iodophenol (CAS 116130-33-7)
Recommended Standards
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- 9-Heptadecanone (CAS 540-08-9)
- 5,7-Difluoro-benzo[d]thiazole, 97% (CAS 1190322-04-3)
- 4-(Difluoromethyl)-2-fluoro-1-(trifluoromethyl)benzene (CAS 1214383-47-7)
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