Are there alternatives to 2-{[4-(Diethylamino)phenyl][4-(diethyliminio)-2,5-cyclohexadien-1-ylidene]methyl}-1,4-benzenedisulfonate (CAS: 68238-36-8) in synthesis?

While 2-{[4-(Diethylamino)phenyl][4-(diethyliminio)-2,5-cyclohexadien-1-ylidene]methyl}-1,4-benzenedisulfonate (CAS: 68238-36-8) is a specific compound, there are alternative reagents and synthetic pathways that can be used to achieve similar functionalities. These alternatives often include other sulfonates or diethylated derivatives. It is important to consider the specific application and the availability of these alternatives in terms of cost and feasibility.