# Species Formula 3982 AsH2-NH2H4NAs 3983 AsH2-NH2 (Geo)H4NAs 3984 As(III)C3 (CNMARS) (Geo)C3H6NAs 3985 As(III)C3 (CNMARS)C3H6NAs 3986 Arsenic tricyanide (Geo)C3N3As 3987 As(V)C3O (ASOXCA) (Geo)C3H9OAs 3988 As(V)C3O (ASOXCA)C3H9OAs 3989 As(OH)3H3O3As 3990 As(OH)3 (Geo)H3O3As 3991 Trimethyl arseniteC3H9O3As 3992 As(V)O3C (ARSACP) (Geo) C6H7O3As 3993 As(V)O3C (ARSACP)C6H7O3As 3994 Triethyl arseniteC6H15O3As 3995 Tri-n-propyl arseniteC9H21O3As 3996 As(V)O4(-) (DAYQAV) (Geo)H2O4As 3997 As(V)O4(-) (DAYQAV)H2O4As 3998 As(V)O5 (HTOASP) (Geo)C4H9O5As 3999 As(V)O5 (HTOASP)C4H9O5As 4000 Arsenic trifluorideF3As 4001 Arsenic trifluoride (Geo)F3As 4002 Arsenic pentafluorideF5As