A rearranged labdane-type diterpenoid and other constituents from Vitex negundo var. cannabifolia

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► A new rearranged diterpenoid was isolated from Vitex negundo var. cannabifolia.
► The diterpenoid exhibited weak activities against some spoilage microorganisms.
► Lamiaceae s.l. has a closer taxonomy relationship with Vitex than Verbenaceae s.str.