64761-20-2
8-甲氧基-4-氧代-1,4-二氢-1,5-萘啶-3-羧酸乙酯
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28312-61-0
1,5-萘啶-4,8-二醇
63086-86-2
4,8-dimethoxy-1,5-naphthyridine