1,4-Bis(2-chloroethoxy)-2,5-dibromobenzene 1,4-Dibromo-2,5-bis(2-chloroethoxy)benzene 178557-12-5 CAS 178557-12-5

Purity 97%+In StockPharmaceutical Standards
CAS No.178557-12-5
Molecular FormulaC10H10Br2Cl2O2
Molecular Weight392.90 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,4-Bis(2-chloroethoxy)-2,5-dibromobenzene 1,4-Dibromo-2,5-bis(2-chloroethoxy)benzene 178557-12-5 CAS 178557-12-5 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 1,4-Bis(2-chloroethoxy)-2,5-dibromobenzene 1,4-Dibromo-2,5-bis(2-chloroethoxy)benzene 178557-12-5.

1,4-Bis(2-chloroethoxy)-2,5-dibromobenzene 1,4-Dibromo-2,5-bis(2-chloroethoxy)benzene 178557-12-5 (CAS 178557-12-5) is a high-purity analytical reference standard with the molecular formula C10H10Br2Cl2O2 and a molecular weight of 392.90 g/mol.

1,4-Bis(2-chloroethoxy)-2,5-dibromobenzene 1,4-Dibromo-2,5-bis(2-chloroethoxy)benzene 178557-12-5 (C10H10Br2Cl2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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.

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 FormulaC10H10Br2Cl2O2
Molecular Weight392.90 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2008
Halogen ContentCl/Br-containing

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