Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

An organic compound that emits red light having a long wavelength is represented by formula (1). In formula (1), R.sub.1 to R.sub.24 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group. ##STR00001##

An organic electroluminescent element including a luminescent compound represented by the following formula (in which R.sup.1 to R.sup.14 each independently represent a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a cyano group, an amino group, an alkoxy group, an aryloxy group, a thio group, or a silyl group, and 8 to 13 groups out of R.sup.1 to R.sup.14 each represent a hydrogen atom or a deuterium atom) in a light emitting layer has high durability and excellent chromaticity. ##STR00001##

An organic electroluminescent element including a luminescent compound represented by the following formula (in which R.sup.1 to R.sup.14 each independently represent a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a cyano group, an amino group, an alkoxy group, an aryloxy group, a thio group, or a silyl group, and 8 to 13 groups out of R.sup.1 to R.sup.14 each represent a hydrogen atom or a deuterium atom) in a light emitting layer has high durability and excellent chromaticity. ##STR00001##

Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

Provided are: an aromatic amine derivative in which a terminal substituent such as a dibenzofuran ring or a dibenzothiophene ring is bonded to a nitrogen atom directly or through an arylene group or the like; an organic electroluminescence device including an organic thin film layer formed of one or more layers including a light emitting layer and interposed between a cathode and an anode in which a layer of the organic thin film layer contains the aromatic amine derivative by itself or as a component of a mixture, and the device has a long lifetime and high luminous efficiency; and an aromatic amine derivative for realizing the device.

A method for treating textile articles including the steps of: (a) providing a laundry care composition comprising a leuco composition; (b) adding the laundry care composition to a liquid medium; (c) placing the textile articles in contact with the liquid medium; (d) depositing at least some portion of the leuco composition onto the textile articles; (e) optionally, rinsing the textile; and (f) drying the textile articles, wherein the leuco composition comprises a leuco colorant with a Photosensitivity Index of greater than or equal to 10.

A method for treating textile articles including the steps of: (a) providing a laundry care composition comprising a leuco composition; (b) adding the laundry care composition to a liquid medium; (c) placing the textile articles in contact with the liquid medium; (d) depositing at least some portion of the leuco composition onto the textile articles; (e) optionally, rinsing the textile; and (f) drying the textile articles, wherein the leuco composition comprises a leuco colorant with a Photosensitivity Index of greater than or equal to 10.

[This] charge transport material which comprises a compound expressed by the following formula has a high efficiency and drive durability after high-temperature storage and resists the occurrence of dark spots (X.sup.101 represents a sulfur atom or an oxygen atom; R.sup.101 and R.sup.102 represent each independently an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, or a silyl group, and may further be substituted with these groups; n101 represents an integer from 0 to 11; n102 represents an integer from 0 to 7; a plurality of R.sup.101 and R.sup.102 [groups] may be the same or different; and L.sup.101 represents a single bond or a divalent linking group; however, one of R.sup.101, L.sup.101, and R.sup.102 includes a fluorine atom, a fluoroalkyl group, a cycloalkyl group, a cycloalkylene group, a silyl group, an alkylsilyl group, an arylsilyl group, or a silicon atom linking group.) ##STR00001##