2,3,5-Trichlorobenzoyl Chloride CAS 42221-48-7

Purity 97%+In StockPharmaceutical Standards
CAS No.42221-48-7
Molecular FormulaC7H2Cl4O
Molecular Weight243.90 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,3,5-Trichlorobenzoyl Chloride CAS 42221-48-7 chemical structure

Description

2,3,5-Trichlorobenzoyl Chloride (CAS 42221-48-7) is a high-purity analytical reference standard with the molecular formula C7H2Cl4O and a molecular weight of 243.90 g/mol.

Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2,3,5-Trichlorobenzoyl Chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 243.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC7H2Cl4O
Molecular Weight243.90 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1969
Halogen ContentCl-containing

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