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Dandong Chemical Research Institute Co., Ltd.

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: +86-415-6279776,6968168,13342165557

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disodium;5-[(2Z)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]-2-[4-[(2Z)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]-2-sulfonatophenyl]benzenesulfonate

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