4,4'-((2R,3S)-Butane-2,3-diyl)bis(chlorobenzene) CAS 64985-93-9

Description

Compared with other compounds in its class, the molecular weight of 279.20 g/mol gives 4,4'-((2R,3S)-Butane-2,3-diyl)bis(chlorobenzene) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4,4'-((2R,3S)-Butane-2,3-diyl)bis(chlorobenzene) (CAS 64985-93-9), molecular formula C16H16Cl2 and molecular weight 279.20 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to chlorine substitution, a polycyclic aromatic system, 4,4'-((2R,3S)-Butane-2,3-diyl)bis(chlorobenzene) is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 279.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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

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