PyritinolHydrochlorideSynonyms:5,5';-[dithiobis(methylene)]bis[4-(hydroxymethyl)-2-methylpyridin-3-ol]dihydrochloridemonohydrateMolecularFormula:C16H20N2O4S2.2(HCl)MolecularWeight:441.39CAS:10049-83-9Description:OffwhitecrystallinepowerIdentify:PositiveClarityandcolorofsolution:YG-3Meltingpoint:132c~136cAcidity:2.2~2.8Water:NMT5.0%Freesulphur:MeettherequirementResidueonignitionNMT0.001%He***ymetals:NMT10ppmAs:NMT5ppmLossondryingNMT0.5%Assay(onAnhydrousbasis):97.0%~103.0%Functionandusage:Itisapprovedfor"symptomatictreatmentofchronicallyimpairedbrainfunctionindementiasyndromes"andfor"supportivetreatmentofsequelaeofcraniocerebraltrauma"invariousEuropeancountries,)