4,5-Dichlorocyclopent-4-ene-1,3-dione CAS 3229-28-5

Description

Compared with other compounds in its class, the molecular weight of 164.97 g/mol gives 4,5-Dichlorocyclopent-4-ene-1,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4,5-Dichlorocyclopent-4-ene-1,3-dione (CAS 3229-28-5), molecular formula C5H2Cl2O2 and molecular weight 164.97 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C5H2Cl2O2, 4,5-Dichlorocyclopent-4-ene-1,3-dione contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 164.97 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

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

Why CATO?

• ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
• 130,000+ catalog items in stock, COA supplied with every batch
• Worldwide shipping with full export documentation (HS code guidance available)
• Technical support: +86 18665070610 / Nicole.chen@cato-chem.com