(3-Phenoxypropyl)guanidine hemisulfate (3-Phenoxypropyl)guanidine sulfate (2:1) 1021-11-0 CI 515 CI-515 CN-34,799-5A EA 166 EA-166 Guanidine, (3-phenoxypropyl)-, sulfate (2:1) Guanoxyfen sulfate HP 1598 NSC172118