The present specification relates to a heterocyclic compound of Chemical Formula 1, an organic light emitting device including same, and a composition for an organic material layer.

The invention relates to new benzonitrile derivatives of the formula (I) wherein R.sup.1 to R.sup.3 and A are as defined in the description and Claims, to their medicaments, to methods for their therapeutic use and to pharmaceutical compositions containing them.

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The present invention relates to compounds and methods useful as inhibitors of phosphodiesterase 4 (PDE4) for the treatment or prevention of inflammatory diseases and other diseases involving elevated levels of cytokines and proinflammatory mediators.

The present invention relates to compounds and methods useful as inhibitors of phosphodiesterase 4 (PDE4) for the treatment or prevention of inflammatory diseases and other diseases involving elevated levels of cytokines and proinflammatory mediators.

The present invention relates generally to the field of antimicrobial compounds and to methods of making and using them. These compounds are useful for treating, preventing, and reducing the risk of microbial infections in humans and animals.

The present invention relates generally to the field of antimicrobial compounds and to methods of making and using them. These compounds are useful for treating, preventing, and reducing the risk of microbial infections in humans and animals.

A crystalline form of iodosulfuron-methyl-sodium of formula (I), the crystal preparation process, the analyses of the crystal through various analytical methods and using the crystal to prepare stable agrochemical formulation. The invention also describes the use of various solvents towards the crystalline form preparation conditions. ##STR00001##

A crystalline form of iodosulfuron-methyl-sodium of formula (I), the crystal preparation process, the analyses of the crystal through various analytical methods and using the crystal to prepare stable agrochemical formulation. The invention also describes the use of various solvents towards the crystalline form preparation conditions. ##STR00001##

This present invention includes novel ligands for metal complexes, which include three fused cycles or heterocycles. The first ring may be either a pyridine or a pyrimidine ring, which coordinates with the iridium metal. The second ring may be a six-membered ring, which may or may not contain nitrogen atoms. The third ring may be either a five or six membered ring. The combination of these aromatic rings provides near infrared or infrared emission in PHOLEDs devices. The bottom ring of the ligand is an alkylated cycle or heterocycle which provides a good efficiency and emission line shape.

This present invention includes novel ligands for metal complexes, which include three fused cycles or heterocycles. The first ring may be either a pyridine or a pyrimidine ring, which coordinates with the iridium metal. The second ring may be a six-membered ring, which may or may not contain nitrogen atoms. The third ring may be either a five or six membered ring. The combination of these aromatic rings provides near infrared or infrared emission in PHOLEDs devices. The bottom ring of the ligand is an alkylated cycle or heterocycle which provides a good efficiency and emission line shape.