2,5-Dimercapto-1,3,4-thiadiazole, 98%, C2H2N2S3, CAS Number-1072-71-5, bismuthiol, usaf a-8354, bismuththiol i, bismuththiol, 2,5-dimercaptothiadiazole, 2,5-dimercapto-1,3,4-thiadiazole, bismuthiol i, dimercaptothiadiazole, 1,3,4-thiadiazole-2,5-dithiol,