(+-)-(2-Hydroxy-3-phenoxypropyl)guanidine sulfate (2:1) (salt) 63273-74-5 GUANIDINE, (2-HYDROXY-3-PHENOXYPROPYL)-, SULFATE (2:1) (salt), (+-)- dl-1-Phenoxy-2-hydroxy-3-guanidinopropane sulfate