Dimethyl 4-Iodophthalate CAS 59340-47-5
| CAS No. | 59340-47-5 |
| Molecular Formula | C10H9IO4 |
| Molecular Weight | 320.08 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.
Dimethyl 4-Iodophthalate (CAS 59340-47-5), molecular formula C10H9IO4 and molecular weight 320.08 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Dimethyl 4-Iodophthalate (C10H9IO4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C10H9IO4 |
| Molecular Weight | 320.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | I-containing |
Related Dimethyl Standards
- Dimethyl 3-iodophthalate (CAS 102928-38-1)
- Dimethyl 2-iodoisophthalate (CAS 106589-18-8)
- Dimethyl 2-iodoterephthalate (CAS 165534-79-2)
- Dimethyl 5-Iodoisophthalate (CAS 51839-15-7)
- Dimethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isophthalate (CAS 1186376-95-3)
- Dimethyl 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)terephthalate (CAS 1186377-08-1)
- 1,2-Dimethyl 4-(tetramethyl-1,3,2-dioxaborolan-2-yl)phthalate (CAS 2157414-14-5)
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