3,3-DINITROBENZIDINE
https://www.pcovery.com/shop/fm-in-da003idq-33-dinitrobenzidine-82528
https://www.pcovery.com/web/image/product.template/82528/image_1920?unique=ef1e0df
3,3-Dinitrobenzidine, high-purity chemical for dye synthesis, analytical research, and lab experiments.
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