| 摘要 |
PROBLEM TO BE SOLVED: To prepare an aqueous solution of an azulene, having a high content of the azulene, by completely dissolving the azulene therein without using a surfactant. SOLUTION: This preparation is prepared by adding the azulene, or a derivative thereof, or a salt thereof, and a polyhydric alcohol, and a polyethylene glycol thereto. COPYRIGHT: (C)2006,JPO&NCIPI
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