丹参二醇B

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| C=18 | H=16 | O=5
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| MeltingPt = 210-213 °C，分子式C18H16O5，属于一种丹参酮类化合物，与丹参二醇C是立体异构体，存在于丹参（Salvia miltiorrhiza）植物中。它的化学合成已被报道。

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