1-Chloro-4-iodo-2-methoxy-5-methylbenzene CAS 1246644-31-4
| CAS No. | 1246644-31-4 |
| Molecular Formula | C8H8ClIO |
| Molecular Weight | 282.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 282.51 g/mol gives 1-Chloro-4-iodo-2-methoxy-5-methylbenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Chloro-4-iodo-2-methoxy-5-methylbenzene (CAS 1246644-31-4) is a high-purity analytical reference standard with the molecular formula C8H8ClIO and a molecular weight of 282.51 g/mol.
1-Chloro-4-iodo-2-methoxy-5-methylbenzene (C8H8ClIO) contains a hydroxyl group, an ether linkage, chlorine/iodine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C8H8ClIO |
| Molecular Weight | 282.51 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.) | 1990 |
| Halogen Content | Cl/I-containing |
Related Chloro Standards
- 4-Chloro-5-iodo-6-isopropylpyrimidine (CAS 1026726-81-7)
- 4-Chloro-2-iodobenzeneethanol (CAS 1067882-47-6)
- 5-Chloro-2-iodo-1-methoxy-3-methylbenzene (CAS 1150617-68-7)
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Recommended Standards
- 4-(Chloromethyl)-1-iodo-2-methoxybenzene (CAS 1378864-63-1)
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- 2-Decyl-3-(5-methylhexyl)oxirane (CAS 35898-62-5)
- 2-(Aminomethyl)-5-nitro-3-(trifluoromethoxy)pyridin-4-amine (CAS 1803708-35-1)
- Potassium trifluoro(5-oxohexyl)borate (CAS 329976-78-5)
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- 2-(4-Phenoxyphenoxy)propan-1-ol (CAS 134227-44-4)
- methyl 2,4,6-trimethyl-3-nitrobenzoate (CAS 250650-97-6)
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- Ethyl isoxazole-4-carboxylate (CAS 80370-40-7)
- Exenatide (CAS 141758-74-9（free base）)
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