2-Methylbenzenearsonic acid 3969-57-1 4-16-00-01185 (Beilstein Handbook Reference) Arsonic acid, (2-methylphenyl)- Arsonic acid, (2-methylphenyl)- (9CI) BRN 2830770 NSC 12620 o-Methylbenzenearsonic acid o-Toluenearsonic acid