1 Erratum to: Chromatographia (2008) 68:S5–S11 DOI 10.1365/s10337-008-0722-3

On page S6 there were confusing mistakes in the structural formulas of silybin, isosilybin, silandrin and isosilandrin, in Fig. 1: stereochemistry at C-2′ and C-3′ was inverted and at C-5′ there was an additional OH group. The correct structures are shown below, and some additional structural formulas were also inserted to achieve a complete compilation of Silybum marianum flavanolignans.

Fig. 1
figure 1

Flavanolignans in the fruits of the purple- and white-flowered varieties of Silybum marianum L. The structure of CSB-A and -B, ICSB-A and -B, SA-B, ISA-B, ICSA-B and CSA-B are tentatively identified