1,2,3,4-Tetrachlorobenzene CAS 634-66-2

Purity >90%In StockPharmaceutical Standards
CAS No.634-66-2
Molecular FormulaC6H2Cl4
Molecular Weight215.89 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1,2,3,4-Tetrachlorobenzene CAS 634-66-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 215.89 g/mol gives 1,2,3,4-Tetrachlorobenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1,2,3,4-Tetrachlorobenzene (CAS 634-66-2), molecular formula C6H2Cl4 and molecular weight 215.89 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to chlorine substitution, an aromatic ring system, 1,2,3,4-Tetrachlorobenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 215.89 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

CATO manufactures 1,2,3,4-Tetrachlorobenzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC6H2Cl4
Molecular Weight215.89 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>90%
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentCl-containing

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Why CATO?