DC   (Diphenylcyanoarsine)
Formula : (C6H5)2AsCN
Description :  Aerosol 
                       State: Solid.
                       Odor : Garlic or bitter almond
                       Color :  
                       Type : Vomiting agent.
                       Persistency: Short.
                       Density: 1.334
                       Decomposition point: begin at 300° C
Symptoms : Appear rapidly. irritation of the eyes and mucous membranes, 
                    runny nose, sneezing and coughing, severe headache, pain and
                    tightness in the chest, nausea and vomiting.
                    Last  30 minutes to several hours. 
Protection : Mask and respirator in open areas. 
                    Additional protective clothes if present in confined or closed areas.
First aid : Fresh air and oxygen.