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Hymecromone (4-methylumbelliferone) is a drug used in bile therapy. It is used as choleretic and antispasmodic drugs and as a standard for the fluorometric determination of enzyme activity.
Hymecromone is a crystalline solid with a melting point of 194–195 °C. It is soluble in methanol and glacial acetic acid.
Yang, Yongsok, and Kozo Hamaguchi. "Hydrolysis of 4-methylumbelliferyl N-acetyl-chitotriosidase catalyzed by hen and turkey lysozymes: pH dependence of the kinetic constants." The Journal of Biochemistry 87.4 (1980): 1003-1014.