Cosmetic raw materials. Sunscreens. Disodium salt of 2,2'-bis-(1,4-phenyl
ene)1H-benzimidazole
-4,6-disulphonic acid. Determination of purity by liquid chromatography.
Cosmetic raw materials. Sunscreens. Disodium salt of 2,2'-bis-(1,4-phenylene)1H-benzimidazole-4,6-disulphonic acid. Determination of purity by liquid chromatography.