N,N-dimethylarginine [ N(G),N(G)-dimethylarginine,N(G)-dimethylarginine,N(G1),N(G1)-dimethylarginine,asymmetric dimethylarginine,dimethyl-L-arginine,guanidino-N,N-dimethylarginine ] asymmetric dimethylarginine; do not confuse with N,N'-dimethylarginine