SMILES: CC1=C(C2=C(C=C1)N=C(S2)C3=CC4=C(C=C3)N=C(S4)C5=CC=C(C=C5)N)S(=O)(=O)[O-]
Description: The molecule is an organosulfonate oxoanion obtained by deprotonation of the sulfo group of 2'-(4-aminophenyl)-6-methyl[2,6'-bi-1,3-benzothiazole]-7-sulfonic acid. It is a conjugate base of a primuline (acid form).