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茜素红S(Alizarin S)属羟基蒽醌类染料,是分析化学中应用比较广泛的一种有机试剂,学名为1,2-二羟基蒽醌-3-磺酸钠,结构式为:
Alizarin S is a hydroxy anthraquinone dye, which is widely used as an organic reagent in analytical chemistry. It has the scientific name of 1,2-dihydroxyanthraquinone-3-sulfonate and its structural formula is: