17035-90-4 42342-68-7 546C88 L-Monomethylarginine L-NMMA L-Ornithine, N5-(imino(methylamino)methyl)- N(G)-Methylarginine N(G)-Monomethyl-L-arginine N(sup G)-Monomethyl-L-arginine N-Methylarginine N-Monomethyl-L-arginine N5-(Methylamidino)-L-ornithine NG-Monomethyl-L-arginine Ornithine, N5-(methylamidino)-, L- Targinine omega-N-METHYLARGININE omega-N-Monomethylarginine