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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

No data providing insights to the likely acute toxicity to freshwater aquatic fish was identified on DIDS (or DIDA or DOS). 
A secondary source describes an unpublished study (performed according to OECD Guideline 203, but not to GLP) in which freshwater golden orfe fish were exposed to DEHS at a nominal limit concentration of 1000 mg/L for 96 hr. No mortality was seen over the course of the study (LC0: 1000 mg/L) (Anon, 1994a).
No acute toxicity data on marine water fish are available for DIDS (or DIDA, DEHS or DOS).

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
1 000 mg/L

Additional information

No data providing insights to the likely acute toxicity to freshwater or marine fish were identified on DIDS.

Relevant read-across data:

A secondary source describes an unpublished acute toxicity study on freshwater golden orfe fish (Leuciscus idus) treated with DEHS, performed in accordance with OECD Guideline 203, but not to GLP. The fish (10 per replicate, with 2 replicates for the test solution and 1 for the untreated control solution) were exposed to DEHS at a nominal concentration of 1000 mg/L for 96 hr. It was noted that analytical test concentrations of DEHS were very low [specific concentrations were not given], probably due to low water solubility. Mortality was assessed at 3, 6, 24, 48, 72 and 96 hr. No mortality was seen over the course of the study (LC0 = 1000 mg/L (nominal)). According to the citing source the "test substance would not be expected to cause mortality at its water solubility or water saturated level" (Anon, 1994a).

No acute toxicity data on marine water fish were available on relevant read-across materials.