There is disclosed a compound Formula I

##STR00001##

In Formula I: Z is CR.sup.4R.sup.5, C═CR.sup.4R.sup.5, SiR.sup.4R.sup.5, GeR.sup.4R.sup.5, NR.sup.4a, PR.sup.4a, P(O)R.sup.4a, O, S, SO, SO.sub.2, Se; SeO, SeO.sub.2, Te, TeO, or TeO.sub.2; R.sup.1 - R.sup.3 are the same or different at each occurrence and are D, aryl, heteroaryl, alkyl, amino, silyl, germyl, deuterated aryl, deuterated heteroaryl, deuterated alkyl, deuterated amino, deuterated silyl, or deuterated germyl, where two groups selected from R.sup.1, R.sup.2, and R.sup.3 can be joined together to form a fused ring; R.sup.4 - R.sup.5 are the same or different at each occurrence and are H, D, aryl, heteroaryl, alkyl, amino, silyl, germyl, deuterated aryl, deuterated heteroaryl, deuterated alkyl, deuterated amino, deuterated silyl, or deuterated germyl; R.sup.4a is alkyl, silyl, germyl, aryl, or a deuterated analog thereof; a is an integer from 0-4; b and c are the same or different and are an integer from 0-3.

An organic compound represented by formula (1). ##STR00001## In the formula (1), R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom and a substituent. At least one of R.sub.1 to R.sub.18 represents a substituent. The substituent is an aryl group having at least one cyano group or a heterocyclic group having at least one cyano group.

An organic compound represented by formula [1]. The compounds are of the class of diacenaphthochrysene compound, useful as organic light emitting device. ##STR00001## In the formula [1], R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom and a substituent.

An organic compound represented by formula [1]. The compounds are of the class of diacenaphthochrysene compound, useful as organic light emitting device. ##STR00001## In the formula [1], R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom and a substituent.

The invention relates to methods of treating cell proliferative disorders. The invention further relates to pharmaceutical compositions for treating cell proliferative disorders, especially cancer.

The invention relates to methods of treating cell proliferative disorders. The invention further relates to pharmaceutical compositions for treating cell proliferative disorders, especially cancer.

Provided are a heterocyclic compound represented by Formula 1 and having an asymmetric structure and an organic light-emitting device including the heterocyclic compound:

##STR00001## wherein, in Formula 1, X.sub.1 is O or Se, Ar.sub.1 is a group represented by Formula 1A, and Ar.sub.2 is a group represented by Formula 1B,

##STR00002## and the other substituents are understood as described in connection with the detailed description.

A compound of formula (I):

##STR00001##

as described herein and methods and uses thereof as for mass tagging a biosensor or biologically active material.

A compound of formula (I):

##STR00001##

as described herein and methods and uses thereof as for mass tagging a biosensor or biologically active material.

An organic compound represented by formula (1).

##STR00001##

In the formula (1), R.sub.1 to R.sub.18 are each independently selected from the group consisting of a hydrogen atom and a substituent. At least one of R.sub.1 to R.sub.18 represents a substituent. The substituent is an aryl group having at least one cyano group or a heterocyclic group having at least one cyano group.