Synonyms: 3-(2-([7-([3-(3-HYDROXY-3-OXOPROPYL)-1,3-BENZOTHIAZOL-2(3H)-YLIDENE]METHYL)-4,4A,5,6-TETRAHYDRO-2(3H)-NAPHTHALENYLIDENE]METHYL)-1,3-BENZOTHIAZOL-3-IUM-3-YL)PROPANOATE;BENZOTHIAZOLIUM, 3-(2-CARBOXYETHYL)-2-[[7-[[3-(2-CARBOXYETHYL)-2(3H)-BENZOTHIAZOLYLIDENE]METHYL]-4,4A,5,6-TETRAHYDRO-2(3H)-NAPHTHALENYLIDENE]METHYL]-, INNER SALT