dimethylarsinothioic acid

Dimethylarsinothioic acid (DMAS) also called dimethylthioarsinic acid (DMTA^V) is an organoarsenic compound that has recently been identified as human metabolite after exposure toward both the human carcinogen inorganic arsenic and arsenosugars, which are the major arsenical constituents of marine algae. It was earlier already identified as a metabolite in sheep's urine after ingestion of seaweed containing arsenosugars.