(Z)-5-[(Dichlorophosphinyl)aMino]-alpha-(ethoxyiMino)-1,2,4-thiadiazol-3-acetyl chloride or (alphaZ)-5-[(Dichlorophosphinyl)aMino]-alpha-(ethoxyiMino)-1,2,4-thiadiazol-3-acetyl chloride [ 90211-01-1 ]