1,3-dimercaptopropane1,3-PropanedithiolTrimethylene dimercaptan1,3-二巯基丙烷1,3-Propanedithiol1,3-丙基二硫醇1,3-丙二硫醇Trimethylene mercaptan1,3-dimercaptopropanepropane-1,3-dithioldithiotrimethyleneglycoltrimethylenedithiol1,3-propanedimercaptantrimethylene dimercaptantrimethylenedithioglycol1,3-PROPANEDITHIOL