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发明人李文辉,王建平,钱学锋. "Method for the Synthesis of 2,6,7-trihydroxy-9-(2-hydroxyphenyl)-3h-xanthen-3-one
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发明人黄志刚,高志强,唐晓军. "A Process for Preparing High-Purity 2,6,7-trihydroxy-9-(2-hydroxyphenyl)-3h-xanthen-3-one
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