2-Ethyl-2-thiopseudourea P,P'-diethylpyrophosphate (2:1) 37031-95-1 P,P'-Diethylpyrophosphate-bis-S-ethyl-isothiuronium Pseudourea, 2-ethyl-2-thio-, P,P'-diethylpyrophosphate (2:1)