What are the physical and chemical properties of Diacenaphtho[1,2-b:1',2'-d]thiophene (CAS: 203-42-9)?

Diacenaphtho[1,2-b:1',2'-d]thiophene (CAS: 203-42-9) is a crystalline solid with a molecular weight of approximately 226.27 g/mol. It has a low solubility in water but is soluble in common organic solvents like dichloromethane and dimethyl sulfoxide. Chemically, it is relatively stable but can undergo electrophilic substitution reactions, particularly with halogens and nitro groups. It is important to handle under inert conditions to avoid oxidation.