The bioluminescent system components are commonly used reagents for a variety of analyzes, including diagnostic systems, quality control systems, drug testing systems, etc. This group of inventions discloses the components of the bioluminescent system Odontosyllis undecimdonta worm, specifically luciferin and pre-luciferin. Besides, this group of inventions discloses a method for detecting luciferase in biological samples using luciferin and pre-luciferin of Odontosyllis undecimdonta worm, and also a method for detecting bioluminescence in a biological sample.

The present invention relates to novel organic light emitting compound and an organic electroluminescence device using the same, and more particularly, to a compound having excellent thermal stability, electrochemical stability, luminescence ability, and hole/electron transporting ability, and an organic electroluminescence device which includes the compound in at least one organic layer and thus has improved characteristics such as luminous efficiency, driving voltage, and lifespan.

The present invention relates to novel organic light emitting compound and an organic electroluminescence device using the same, and more particularly, to a compound having excellent thermal stability, electrochemical stability, luminescence ability, and hole/electron transporting ability, and an organic electroluminescence device which includes the compound in at least one organic layer and thus has improved characteristics such as luminous efficiency, driving voltage, and lifespan.

The present application relates to an electronic device comprising a xanthene or thioxanthene compound of a particular formula. The electronic device is preferably an organic electroluminescent device (OLED). The application further relates to particular xanthene or thioxanthene compounds as such, and to the use thereof in the abovementioned devices, and to processes for preparation thereof.

The present application relates to an electronic device comprising a xanthene or thioxanthene compound of a particular formula. The electronic device is preferably an organic electroluminescent device (OLED). The application further relates to particular xanthene or thioxanthene compounds as such, and to the use thereof in the abovementioned devices, and to processes for preparation thereof.

The present invention generally relates to carbon monoxide releasing compounds and compositions, and their use as carbon monoxide prodrugs.

The present invention generally relates to carbon monoxide releasing compounds and compositions, and their use as carbon monoxide prodrugs.

Provided is a heterocyclic compound of Chemical Formula 1:

##STR00001##

and an organic light emitting device including the same.

An organic electroluminescence device includes oppositely disposed first electrode and second electrode, and at least one organic layer disposed between the first electrode and the second electrode, wherein at least one organic layer includes a polycyclic compound represented by Formula 1, thereby showing improved device efficiency and life characteristics.

##STR00001##

Provided is a heterocyclic compound of Chemical Formula 1:

##STR00001##

and an organic light emitting device including the same.