1,3,4-thiadiazole, 2-[(2-chloroethyl)thio]-5-(methylthio)- 2-[(2-chloroethyl)thio]-5-(methylthio)-1,3,4-thiadiazole InChI=1/C5H7ClN2S3/c1-9-4-7-8-5(11-4)10-3-2-6/h2-3H2,1H