6'-Methyl-7'-(3-sulphonatopropyl)spiro(cyclohexane-1,2'-(1,3)dioxolo(4,5-f)benzothiazolium) 68239-11-2 EINECS 269-424-3 Spiro(cyclohexane-1,2'-(1,3)dioxolo(4,5-f)benzothiazolium), 6'-methyl-7'-(3-sulfopropyl)-, hydroxide, inner salt Spiro(cyclohexane-1,2'-(1,3)dioxolo(4,5-f)benzothiazolium), 6'-methyl-7'-(3-sulfopropyl)-, inner salt