5-Chloro-7-methylbicyclo[4.2.0]octa-1(6),2,4-trien-7-ol CAS 203805-75-8

Description

Compared with other compounds in its class, the molecular weight of 168.62 g/mol gives 5-Chloro-7-methylbicyclo[4.2.0]octa-1(6),2,4-trien-7-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Chloro-7-methylbicyclo[4.2.0]octa-1(6),2,4-trien-7-ol (CAS 203805-75-8), molecular formula C9H9ClO and molecular weight 168.62 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 5-Chloro-7-methylbicyclo[4.2.0]octa-1(6),2,4-trien-7-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 168.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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

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