it was shown that a single dose of arsenic trioxide administered to hamsters was chiefly methylated in vivo into methylarsonic acid ( maa ) and dimethylarsinic acid ( dmaa ) , and that inorganic arsenic accounted for the major portion of total arsenic that deposited in organs and tissues , followed by maa and dmaa in decreasing sequence of significance .
C0052416
arsenic trioxide
C0003818
arsenic