SMILES: CC[C@H](C)C(=O)NC1=NC=C(N=C1CCC[NH+]=C(N)N)C2=CNC3=CC=CC=C32
Description: The molecule is the conjugate acid of oxidized Cypridina luciferin arising from selective protonation of the guanidino group; major species at pH 7.3. It is a conjugate acid of an oxidized Cypridina luciferin.