Provided are a compound capable of improving the luminous efficiency, stability and lifespan of an organic electronic device, an organic electronic element using the same, and an electronic device thereof.

Provided is a compound according to Formula 1

##STR00001##

wherein X, R, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are as defined herein. The compound of Formula 1 can be useful in a composition and in a method for inducing ferroptosis in a cell.

This invention is directed to, inter alia, compounds, methods, systems, and compositions for the maintenance, enhancement, and expansion of hematopoietic stem cells derived from one or more sources of CD34+ cells. Sources of CD34+ cells include bone marrow, cord blood, mobilized peripheral blood, and non-mobilized peripheral blood. Also provided herein are compounds of Formula I

##STR00001##

which are useful in maintaining, enhancing, and expanding of hematopoietic stem cells.

An objective of the invention is to provide, as a material for highly efficient, highly durable organic EL devices, an organic EL device material having excellent hole injectability and transportability, electron blockability, high stability in a thin-film state, and excellent durability, and also to provide a highly efficient, highly durable organic EL device by using this compound. The present invention concerns an arylamine compound represented by general formula (1). (In the formula, Ar.sub.1, Ar.sub.2, Ar.sub.3, and Ar.sub.4 each represent a substituted or unsubstituted aromatic hydrocarbon group, etc.; L.sub.1 and L.sub.2 each represent a divalent substituted or unsubstituted aromatic hydrocarbon group, etc.; R.sub.1 to R.sub.7 each represent a hydrogen atom, a deuterium atom, etc.; and m and n may be the same or different from one another, and each represent an integer from 0 to 2, wherein L.sub.1 represents a single bond when m is 0, and L.sub.2 represents a single bond when n is 0.)

The present invention provides an electroluminescent compound of one of following formulas Formula 1 and Formula 2. Another aspect of the invention is an electroluminescent device including a first electrode; a second electrode facing the first electrode; and at least one organic material layer between the first and second electrodes, wherein one or more of the at least one organic material layer includes the electroluminescent compound. ##STR00001##

The present specification relates to a compound represented by Chemical Formula 1, and an organic light emitting device including the same.

The present inventors found cyclic peptide compounds that interact with Ras, and non-natural amino acids useful for the production of the cyclic peptide compounds. The inventors also found that the cyclic peptide compounds inhibit the binding between Ras and SOS. In addition, the inventors found specific non-natural amino acids contained in the cyclic peptide compounds and methods for production thereof.

Provided is a compound for an organic electric device, an organic electric device using the same, and an electronic device including the organic electric device. Further provided is an organic electric device having high luminous efficiency, low driving voltage, and high heat resistance can be provided, and color purity and lifespan of the organic electric device can be improved.

Provided are a compound capable of improving the light-emitting efficiency, stability, and lifespan of an element; an organic electrical element using same; and an electronic device comprising same.

The invention relates to a hydrogel product comprising glycosaminoglycan molecules as the swellable polymer, wherein the glycosaminoglycan molecules are covalently crosslinked via crosslinks comprising a spacer group selected from the group consisting of di-, tri-, tetra-, and oligosaccharides.