arsinic acid dihydridohydroxidooxidoarsenic 109.93490 HAsH2O2 InChI=1S/AsH3O2/c2-1-3/h1H2,(H,2,3) chebi_ontology CHEBI:29840 H3AsO2 [H]O[As]([H])([H])=O VJWWIRSVNSXUAC-UHFFFAOYSA-N 0 arsinic acid [AsH2O(OH)] 109.94422 arsinate arsenic oxoacid