Table 2. Comparison of the LC₅₀ pediculicidal activity of vicinal diols with triols and mono-ols.

Compound	LC50 value (mmol/l)	Potency index (%)*
1,2,3-Hexanetriol	Non calculable	Not effective
1,2,6-Hexanetriol	Non calculable	Not effective
2-Ethyl-1-hexanol	300	4
2-Ethyl-1,3-hexanediol	60	20
1-Decanol	35	32
2-Decanol	37	34
4-Decanol	183	6
9-Decene-1-ol	33	36
1,2-Decanediol	12	100
3-Ethyl-1-decanol	62	20
1-Octyl-1,2-decanediol	97	12
3-Ethyl-1,2-decanediol	Non calculable	Not effective

^*The potency index compares the observed LC₅₀ value with that of 1,2-decanediol ( = 100%).