Dichlorooctylisothiazolinone
Dichlorooctylisothiazolinone, DCOIT or DCOI, is the organic compound with the formula SC=CCNC7H15. It is a white solid that melts near room temperature. It is an isothiazolinone, a class of heterocyclic compounds used as biocides. DCOIT has attracted attention as an antifouling compound. It is a replacement for organotin compounds that have been largely banned for causing environmental damage. DCOIT however is itself controversial.