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5,5-Diphenylhydantoin

2,5-Dichloronicotinic acid

2,6-Dichloro-4-nitroaniline

1,6-Diphenylhexane-1,6-dione

N,N-Diphenylguanidine monohydrobromide

4,5-Dichloro-2-nitroaniline

1,3-Diphenylguanidine