2-Amino-4-(oxoarsino)phenol hydrochloride 2-Amino-4-arsenosophenol 306-12-7 538-03-4 (HYDROCHLORIDE) AIDS-000440 AIDS000440 Mapharsen Maphersen.RTM. NSC627725 (HYDROCHLORIDE SALT) Oxophenarsine Oxophenarsine hydrochloride 3-Amino-4-hydroxyphenyl-arsineoxide hydrochloride