1,3 Di Bromo 5 : 5 Di Methyl Hydantoin in soluble in methanol. 1,3 Di Bromo 5 : 5 Di Methyl Hydantoin is available in white to cream powder form. 1,3 Di Bromo 5 : 5 Di Methyl Hydantoin can be melted at a temperature ranging from 186 Degree C to 190 Degree C. 1,3 Di Bromo 5 : 5 Di Methyl Hydantoin ensures NMT 1.0% W/W loss on drying and comprises of NLT 98.0% W/W.