I have been asked recently about the biocide Dimethyl Fumarate (DMF).....CAS624-49-7.
On 1May 2009 the European Commission banned products containing DMF from being placed on the market. Any products already on the market had to be either withdrawn or recalled from customers.
A popular use for the substance is controlling mould, mainly in leather products.
DMF has been found to be an allergic sensitiser at low concentration and can produce extensive and pronounced eczema that is difficult to treat. Concentrations as low as one part per million may produce allergic reactions.
The extreme risk was brought to public attention by the so called "poison chair" incident, where a Chinese manufacturer produced two-seater sofas with DMF sachets inside to inhibit mould while they were in storage or transport. In
Since then a popular French distribution chain has found footwear sold in its stores to have been contaminated by DMF and has received complaints of skin damage.
In 2009 alone there has been 46 product recalls for shoes in Spain, France and Germany.
Consumers in other countries such as
While DMF maybe an effective antifungal agent, it is harmful in contact with the skin and, if in contact with the eyes, could result in serious damage.
Directive Decoder
Gary Nevison, Head of Legislation at 
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