Methyl 4-bromo-2,3-difluoro-5-iodobenzoate CAS 1878217-46-9
| CAS No. | 1878217-46-9 |
| Molecular Formula | C8H4BrF2IO2 |
| Molecular Weight | 376.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 4-bromo-2,3-difluoro-5-iodobenzoate 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.
Methyl 4-bromo-2,3-difluoro-5-iodobenzoate (CAS 1878217-46-9) is a high-purity analytical reference standard with the molecular formula C8H4BrF2IO2 and a molecular weight of 376.92 g/mol.
Structurally, Methyl 4-bromo-2,3-difluoro-5-iodobenzoate (C8H4BrF2IO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine/iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 376.92 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C8H4BrF2IO2 |
| Molecular Weight | 376.92 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Br/I-containing |
Related Methyl Standards
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Recommended Standards
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- 3,4-Dihydro-3-(iodomethyl)-2h-1-benzopyran (CAS 206353-40-4)
- 2-((5-Methylisoxazol-3-yl)carbamoyl)cyclohexane-1-carboxylic acid (CAS 313385-57-8)
- Caspofungin Impurity C Acetate salt (CAS 251095-73-5 (free base))
- 3,5-Difluorobenzamide (CAS 132980-99-5)
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