| 摘要 |
<p> Provided is a charge controlling agent which contains at least one kind of a compound represented by the general formula (1) as active ingredient, at least 50 mol％ of above mentioned compound being a cone conformer or a partial cone conformer. In the formula, R1 to R4 may be identical or different from one another and represent a substituted or unsubstituted, linear or branched, alkyl group or similar, with a number of carbon atoms between 1 and 20; R5 to R8 may be identical or different from one another and represent a substituted or unsubstituted, linear or branched, alkyl group or similar, with a number of carbon atoms between 1 and 20; X1 to X4 may be identical or different from one another and represent a sulfur atom or similar.</p> |
