Figure 1
From: Kinetic investigations of sulfite addition to flavanols

Structure of monomeric flavanols 1-2, dimeric flavanols 3–4 and their corresponding 4-sulfo analogues 5–6 and 7–8.
From: Kinetic investigations of sulfite addition to flavanols

Structure of monomeric flavanols 1-2, dimeric flavanols 3–4 and their corresponding 4-sulfo analogues 5–6 and 7–8.