Assay uracil-specific fluorescence detection reactions and dihydropyrimidine dehydrogenase deficiency

The present invention, it is possible to detect uracil short time with high precision and economically by a simple method, provides a method of detecting uracil. The present invention comprises a uracil, by reacting a compound of formula (I), characterized in that to obtain a fluorescent compound represented by Formula (II), a method for detecting uracil.