A non-cyclic polydimethyl siloxane. Study shows that it can be transformed by a specific microflora and in the natural environment degraded by mechanisms similar to other organic compounds.
Watanabe, N., et al.: Ecotoxic. Env. Safety, 11, 174 (1986); Wasserbauer, R., et al.: Folia Microbiologica, 35, 384 (1990);