3-Pyridinol, 5,5'-dithiodimethylenebis(2,4-dimethyl-, dihydrochloride 4-Desoxypyridoxin-5-disulfid dihydrochlorid [German] 5,5'-Dithiodimethylenebis(2,4-dimethyl-3-pyridinol) dihydrochloride 73840-50-3