C 3041 (OTTO) Cytochalasin B, from drechslera dematioidea Cas 14930-96-2 - used for characterizing some of the polymerization properties of actin, and in studies on cytokinesis. C 3041 (OTTO) Cytochalasin B, from drechslera dematioidea Cas 14930-96-2 - used in actin polymerization studies and cytological research.