| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for stabilizing an aqueous aldehydopyridine solution by inhibiting the decomposition of the aldehydopyridine in the aqueous aldehydopyridine solution. SOLUTION: The method for stabilizing the aqueous aldehydopyridine solution comprises adding an acid to the aqueous aldehydopyridine solution obtained by dissolution an aldehydopyridine in water or dissolving the aqueous aldehydopyridine in an aqueous acid solution to adjust its pH to, usually, 3 or below and, desirably, to 2 or lower. COPYRIGHT: (C)2006,JPO&NCIPI
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