<unk>  is a rodent carcinogen found in the<unk>  and Asarum species, both in the<unk> ceae family of plants.<unk>  is composed of a ~1:1 mixture of two forms,<unk>  I and<unk>  II.
In addition to its carcinogenicity,<unk>  is also highly nephrotoxic and may be a causative agent in Balkan nephropathy.  However, despite these well-documented dangers,<unk>  is still sometimes used as a herbal remedy for weight loss.
Aristolochic acid
Oleic acid
Cyanic acid
Tartaric acid
Mandelic acid
Citicoline
Stearic acid
Maleic acid