5416-30-8 Carbamimidothioic acid, N,N'-diphenyl-, methyl ester NSC6793 Pseudourea, 1,3-diphenyl-2-methyl-2-thio- Pseudourea, 2-methyl-1,3-diphenyl-2-thio- S-Methyl N,N'-diphenyl thiopseudourea WLN: 1SYMR&UNR