Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Toxicity data are available in three trophic levels. the Algae and fish appear to be the most sensitive species for the toxicity of di-n-butyl ether with the LC50/EC50s falling in the range of 10-100 mg/l. There appears to be some variability in toxicity to marine and freshwater fish, but it is unclear if there is a real difference or if this is an artifact of study design.

The data on aquatic toxicity indicate a need to classify di-n-butyl ether as hazardous to the environment. Considering it's lack of biodegradability, a classification of Chronic 3 is appropriate.