(T-4)-Bis(2,3-dimercapto-1-propanolato(2-)-S,S')zincate(2-) 94157-11-6 Dimercaptopropanol-zinc complex Dmp-Zn Dmp-zinc Zincate(2-), bis(2,3-dimercapto-1-propanolato(2-)-S,S')-, (T-4)-