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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Pulm Pharmacol Ther. 2012 Dec 29;26(2):296–304. doi: 10.1016/j.pupt.2012.12.009

Figure 1.

Figure 1

Unsulfated or sulfated low molecular weight lignins (LMWLs) prepared from caffeic acid (CD and CDSO3), ferulic acid (FDSO3) or sinapic acid (SDSO3) alongside their physicochemical characteristics. Chemical structures are shown as sulfated LMWLs.