IPBC; Troysan; polyphase; Nipacide IPBC; Mergal; Preventol; 3-iodine-2-propenyl-butylcarbamate; 3-iodine-2-propenyl-butylcarbamate; nordic; IPBC; fungucide; algicide; EXOCIDE IBB; EXOCIDE IPBC; Iodopropynyl Butyl Carbamate;