1	8P4	1-(4-fluorophenyl)thiourea	1.000
2	URS	N-phenylthiourea	0.909
3	5Q5	1-(2-methylphenyl)thiourea	0.833
4	0FI	N-phenylthioformamide	0.818
5	PTU	2-ethyl-1-phenyl-isothiourea	0.769
6	PHU	1-phenylurea	0.750
7	PL0	1-phenylguanidine	0.750
8	YS6	1-pyridin-4-ylthiourea	0.750
9	1MR	N-methylaniline	0.727
10	CYI	Cyclohexyl isocyanide	0.727
11	VCU	~{N}-methylcyclohexanamine	0.727