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2,4-dioxo-2,4-dihydro-1H-benzo[d][1,3]oxazine-7-carboxylic acid
77423-14-4 AF11715
C9H5NO5 207.1397
2,4-dioxo-2,4-dihydro-1H-benzo[d][1,3]oxazine-7-carboxylic acid
4-羧基靛红酸酐
98