2,3,5,6-Tetrachlorophenol CAS 935-95-5

Purity >95%In StockPharmaceutical Standards
CAS No.935-95-5
Molecular FormulaC6H2Cl4O
Molecular Weight231.89 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3,5,6-Tetrachlorophenol CAS 935-95-5 chemical structure

Description

The occurrence of 2,3,5,6-Tetrachlorophenol is closely related to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2,3,5,6-Tetrachlorophenol (CAS 935-95-5) is a high-purity analytical reference standard with the molecular formula C6H2Cl4O and a molecular weight of 231.89 g/mol.

Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2,3,5,6-Tetrachlorophenol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 231.89 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).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

As a certified reference material (CRM), 2,3,5,6-Tetrachlorophenol 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.

Physical & Chemical Properties

Molecular FormulaC6H2Cl4O
Molecular Weight231.89 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity>95%
StorageStore at room temperature, keep tightly closed to prevent evaporation
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.)1957
Halogen ContentCl-containing

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