N-[(5E)-2-[(E)-2-(5-chloro-3-ethyl-1,3-benzothiazol-3-ium-2-yl)ethenyl]-5-[(2Z)-2-(5-chloro-3-ethyl-1,3-benzothiazol-2-ylidene)ethylidene]cyclopenten-1-yl]-N-phenylaniline;perchlorate