Keywords: Brevetoxin B.svg Brevetoxin B a group of neurotoxins isolated from the marine dinoflagellate Karenia brevis formerly Gymnodinium breve Brevetoxin-2 PbTx-2 R -CH<sub>2</sub>C CH<sub>2</sub> CHO Brevetoxin-3 PbTx-3 R -CH<sub>2</sub>C CH<sub>2</sub> CH<sub>2</sub>OH Brevetoxin-8 PbTx-8 R -CH<sub>2</sub>COCH<sub>2</sub>Cl Brevetoxin-9 PbTx-9 R -CH<sub>2</sub>CH CH<sub>3</sub> CH<sub>2</sub>OH Other B-type Brevetoxins Brevetoxin-5 PbTx-5 R -CH<sub>2</sub>C CH<sub>2</sub> CH<sub>2</sub>OH OH in position 37 is acetylated Brevetoxin-6 PbTx-6 like PbTx-2 epoxide in position 27-28 Own 2006-09-13 created by Minutemen using BKchem 0 11 4 Inkscape 0 44 public domain Brevetoxin |