Number | Date | Country | Kind |
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3731239 | Sep 1987 | DEX |
Entry |
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Chi et al., Chem. Abs, 99, 43356g (1983). |
Chi et al., Chem. Abs, 105, 139476q (1986). |
Yakhak Hoeji, vol. 27, No. 1, p. 37 (1983), Chi et al., "Anthraquinones from the Rhizome of Polygonum sachalinense". |