All
 D12 Amino Acids, Peptides, and Proteins D000602 +
 D12.125 Amino Acids D000596 +
 D12.125.095 Amino Acids, Diamino D000599 +
 D12.125.095.104 Arginine D001120 +
 D12.125.095.104.075 Argininosuccinic Acid D001125 
 D12.125.095.104.100 Benzoylarginine Nitroanilide D001586 
 D12.125.095.104.095 Benzoylarginine-2-Naphthylamide D001587 
 D12.125.095.104.400 Homoarginine D006709 
 D12.125.095.104.900 Tosylarginine Methyl Ester D014106 
 D12.125.095.104.650 omega-N-Methylarginine D019323 
 D12.125.095.104.525 NG-Nitroarginine Methyl Ester D019331 
 D12.125.095.104.587 Nitroarginine D019335