• 2-Amino-1,3,4-thiadiazole
• Acetone thiosemicarbazone
• Hydrazine dihydrochloride
• Hydrazine Monohydrochloride
• 2,5-Dithiobiurea
• 2-Amino-5-methyl-1,3,4-thiadiazole
• 3-Amino-5-mercapto-1,2,4-triazole
• 1H-1,2,4-Triazole-3-thiol
• 5-Amino-1,3,4-thiadiazole-2-thiol