Cayman offers a dedicated tool set to study stimulator of interferon genes (STING), a central mediator of the innate immune response that induces the expression of various interferons (IFNs), cytokines, and T cell recruitment factors and has the potential to enhance the initial anticancer response. Products include cyclic dinucleotides (CDNs), recombinant STING variants, ELISA kits, agonists, inhibitors, and additional key pattern recognition receptor proteins and antibodies to study this area of therapeutic interest.