1,3,4-Thiadiazole-2-thiol18686-82-3100 % similar 2-Mercaptothiazole5685-05-242 % similar 2-Thiazolethiol82358-09-642 % similar 4-Methyl-2(3H)-thiazolethione4498-39-938 % similar 2,5-Dimercapto-1,3,4-thiadiazole1072-71-538 % similar 2-Mercapto-4-phenylthiazole2103-88-032 % similar 4-(4-Pyridinyl)-2(3H)-thiazolethione77168-63-931 % similar