(2-(Diethylamino)ethyl)guanidinium sulfate 1-(2-(Diethylamino)ethyl)guanidine sulfate 2-Diethylaminoethyl guanidinium sulfate 3272-63-7 GUANIDINE, (2-(DIETHYLAMINO)ETHYL)-, SULFATE (1:1) NSC 24514 NSC 73661 USAF A-7189