Abstract: The present disclosure provides a hairball remedy paste for cats, including collagen, sodium carboxymethylcellulose, bone glue, chicken liver powder, chicken meal, edible oil, fructooligosaccharide, hydrolyzed fish protein powder, maltitol, Saccharomyces cerevisiae extract, glycerol, barley seedling powder, vitamin nano-liposomes, protein chelated mineral, potassium iodide, taurine, and water. The hairball remedy paste for cats does not contain mineral oil, and does not affect the absorption of nutrient substances by intestines and stomach after long-term use. Through the synergistic effect of edible oil, fructooligosaccharide, and barley seedling powder, it is conducive to help cats to discharge hairs in intestines and stomach through feces, which can effectively prevent the occurrence of the trichobezoar and improve the constipation of cats.

Abstract: To provide nitrogen-containing aromatic compounds with excellent oxygen reduction activity, metal complexes containing them, and catalysts and electrodes employing the same, the present invention provides an aromatic compound satisfying the following conditions (a) and (b): (a) It has 2 or more structures surrounded by at least 4 coordinatable nitrogen atoms (which structures may be the same or different), (b) At least one of the nitrogen atoms composing the structure is a nitrogen atom in a 6-membered nitrogen-containing heterocyclic ring.

Abstract: To provide nitrogen-containing aromatic compounds with excellent oxygen reduction activity, metal complexes containing them, and catalysts and electrodes employing the same, the present invention provides an aromatic compound satisfying the following conditions (a) and (b): (a) It has 2 or more structures surrounded by at least 4 coordinatable nitrogen atoms (which structures may be the same or different), (b) At least one of the nitrogen atoms composing the structure is a nitrogen atom in a 6-membered nitrogen-containing heterocyclic ring.