arginine argininate chebi_ontology 173.19318 C6H13N4O2 -1 2-amino-5-(carbamimidamido)pentanoate Gmelin:603497 2-amino-5-guanidinopentanoate 173.10440 CHEBI:32695 arg(-) ODKSFYDXXFIFQN-UHFFFAOYSA-M InChI=1S/C6H14N4O2/c7-4(5(11)12)2-1-3-10-6(8)9/h4H,1-3,7H2,(H,11,12)(H4,8,9,10)/p-1 argininate NC(CCCNC(N)=N)C([O-])=O arginine anion alpha-amino-acid anion