1,5-Dichloro-2-iodo-4-methoxybenzene CAS 189138-40-7

Purity 97%+In StockPharmaceutical Standards
CAS No.189138-40-7
Molecular FormulaC7H5Cl2IO
Molecular Weight302.92 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,5-Dichloro-2-iodo-4-methoxybenzene CAS 189138-40-7 chemical structure

Description

The occurrence of 1,5-Dichloro-2-iodo-4-methoxybenzene is closely related to a hydroxyl group, an ether linkage, chlorine/iodine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1,5-Dichloro-2-iodo-4-methoxybenzene (CAS 189138-40-7) is a high-purity analytical reference standard with the molecular formula C7H5Cl2IO and a molecular weight of 302.92 g/mol.

Structurally, 1,5-Dichloro-2-iodo-4-methoxybenzene (C7H5Cl2IO) contains a hydroxyl group, an ether linkage, chlorine/iodine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 302.92 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

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 FormulaC7H5Cl2IO
Molecular Weight302.92 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2011
Halogen ContentCl/I-containing

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