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Martínez F, Schröder R, Lefèvre J P. "A Process for Preparing High-Purity 50573-74-5
Benzoic acid,2-amino-6-nitro-; Anthranilicacid, 6-nitro- (6CI,7CI); 2-Amino-6-nitrobenzoic acid; 6-Nitroanthranilic acid" [P]. European Patent, EP 3728178 A1, 2021-11-21.
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