Synonyms:
4-sulpho-1,8-naphthalic anhydride,potassium salt+98% ; potassium 1,3-dioxo-1h,3h-naphtho[1,8-cd]pyran-6-sulphonate ; 1h,3h-naphtho[1,8-cd]pyran-6-sulfonicacid,1,3-dioxo-,potassiumsalt ; 1,8-naphthalicanhydride-4-sulfonicacid,potassiumsalt ; 4-sulpho-1,8-naphthalic anhydride, potassium salt ; 1,8-naphthalenedicarboxylic anhydride-4-potassium sulfonate ; 4-sulfo-1,8-naphthalic anhydride, potassium salt ; 4-sulfo-1,8-naphthalic anhydride, potass ium salt, tech., 90% ; 3h-naphtho[1,8-cd]pyran-6-sulfonicacid,1,3,-dioxo-1potassiumsalt ; 4-potassiosulfo-1,8-naphthalenedicarboxylic anhydride
