Table 1. R_f Values of Suvorexant (SUV) and IS Were Recorded Using Different Eluent Systems (Mean ± SD; n = 3).

	Rf
eluent system	IS	SUV
acetone/cyclohexane (90:10 v/v)	0.18 ± 0.01	0.91 ± 0.03
acetone/cyclohexane (97.5:2.5 v/v)	0.17 ± 0.01	0.90 ± 0.03
cyclohexane/ethyl acetate (90:10 v/v)	0.15 ± 0.01	0.89 ± 0.02
cyclohexane/ethyl acetate (97.5:2.5 v/v)	0.14 ± 0.01	0.88 ± 0.02
ethyl acetate/methanol (90:10 v/v)	0.12 ± 0.01	0.87 ± 0.02
ethyl acetate/methanol (97.5:2.5 v/v)	0.11 ± 0.01	0.86 ± 0.02
chloroform/methanol (90:10 v/v)	0.10 ± 0.00	0.46 ± 0.01
chloroform/methanol (97.5:2.5 v/v)	0.09 ± 0.00	0.45 ± 0.01