Invalid SMILES

could not parse 'C12=C3C4=C5C6=C1C7=C8C9=C1C$10=C$11C(=C29)C3=C2C3=C4C4=C5C5=C9C6=C7C6=C7C8=C1C1=C8C$10=C$10C$11=C2C2=C3C3=C4C4=C5C5=C$11C$12=C(C6=C95)C7=C1C1=C$12C5=C$11C4=C3C3=C5C(=C81)C$10=C23', Endpoints of ringbond are already connected - multi-edges are not allowed C12=C3C4=C5C6=C1C7=C8C9=C1C$10=C$11C(=C29)C3=C2C3=C4C4=C5C5=C9C6=C7C6=C7C8=C1C1=C8C$10=C$10C$11=C2C2=C3C3=C4C4=C5C5=C$11C$12=C(C6=C95)C7=C1C1=C$12C5=C$11C4=C3C3=C5C(=C81)C$10=C23 ^