Chemical compounds having a high selectivity for double stranded DNA over RNA and single stranded DNA are disclosed. A first sidewall intersects the first surface along a first edge. Customer accounts are automatically activated and provided with data from the CPDB when a customer from one casino property first visits an affiliated casino property. The application also relates to an aqueous biorelevant media composed of surfactants occurring in the gastrointestinal tract of mammals, in particular when prepared from above homogeneous biorelevant composition.