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