Patent ID: 8735878

Claim:
A charge transporting material, comprising: a compound represented by Formula (Cz-1), wherein a content of an impurity represented by Formula (I-1) in the charge transporting material is from 0.000% to 0.10% when the content is calculated as a proportion of an absorption intensity area of the impurity represented by Formula (I-1) with respect to a total absorption intensity area of the charge transporting material, as measured by high-performance liquid chromatography at a measurement wavelength of 254 nm: wherein in Formula (Cz-1), each of R 1 to R 4 independently represents a fluorine atom, an alkyl group, an aryl group, a silyl group or a cyano group, provided that when R 1 to R 4 respectively exist in plurality, a plurality of R 1 's to a plurality of R 4 's may be the same or different respectively; R 5 represents an alkyl group, an aryl group or a silyl group, provided that R 5 does not represent a carbazolyl group or a perfluoroalkyl group, and when R 5 exists in plurality, a plurality of R 5 's may be the same or different or a plurality of R 5 's may be bonded together to form an aryl ring; each of n1 to n4 independently represents an integer from 0 to 4; and n5 represents an integer from 0 to 5: wherein in Formula (I-1), R 1 to R 4 are the same atoms or groups as defined for R 1 to R 4 in Formula (Cz-1) respectively; and n1 to n4 are the same integers as defined for n1 to n4 in Formula (Cz-1) respectively.