Recombinant Anti-FAS x Anti-CSPG4 Bispecific Antibody (IgG(L)-scFv) is formed by an IgG and two scFv moieties. The scFv fragments from an anti-FAS antibody are fused to the C terminus of an anti-CSPG4 IgG light (L) chains, or vice versa. It is a type of appended IgGs, which is bispecific and tetravalent (2+2 antigen-binding valency). This BsAb can induce targeted apoptosis. It is designed for the research of Melanoma therapy.