2,3-Diiodophenol CAS 408340-16-9
| CAS No. | 408340-16-9 |
| Molecular Formula | C6H4I2O |
| Molecular Weight | 345.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,3-Diiodophenol.
CATO supplies 2,3-Diiodophenol (CAS 408340-16-9), a certified reference material (molecular formula C6H4I2O, MW 345.90 g/mol) for analytical method development and quality control.
Owing to a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system, 2,3-Diiodophenol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 345.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6H4I2O |
| Molecular Weight | 345.90 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, 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.) | 2025 |
| Halogen Content | I-containing |
Related Diiodophenol Standards
Recommended Standards
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- 5-Ethenyl-1,2,3-trifluorobenzene (CAS 159294-99-2)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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