Streptovarycin

Formula : C40-H51-N-O14
CAS : 1404-74-6 

A complex of ansamycin antibiotics consisting of streptovaricins A, B, C, D, E, F, G, J, and K of which streptovaricin C is the major component. (From Merck Index, 11th ed)

Streptovirudin

Formula : Unspecified
CAS : 56833-74-0 

New antibiotics with antiviral activity isolated from Streptomyces grisoflavus.

Striatoxin protein, Conus striatus

Formula :
CAS : 82030-90-8 

Cardiotonic glycoprotein from venom of marine snail Conus striatus.