CAS Registry Number

CAS 695-99-8 — 2-Chloro-1,4-benzoquinone

2-Chloro-1,4-benzoquinone (CAS 695-99-8) is an aromatic chlorinated quinone used as an intermediate in organic synthesis, particularly for dyes, agrochemicals, and pharmaceuticals. It is a yellow crystalline solid with a strong odor, often employed in redox reactions and as a polymerization inhibitor. Catalogue details: Molecular formula C6H3ClO2, molecular weight 142.54 g/mol, stable at ambient storage conditions. Safety classification includes a signal word of *Warning* for irritant and environmental hazards. Molekula supplies 2-Chloro-1,4-benzoquinone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.