4-Aminophenylarsenoxide , its CAS NO. is 1122-90-3, the synonyms are 3-16-00-00986 (Beilstein Handbook Reference) ; Aniline, p-arsenoso- ; BRN 2827922 ; NSC 10876 ; p-Arsenosoaniline ; Benzenamine, 4-arsenoso- (9CI) .