Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Short-term toxicity to fish:
Conclusion: Results from short-term toxicity studies with several species of fish show that DTDP does not cause toxicity at the maximum achievable aqueous concentrations investigated in these tests (i.e. in excess of water solubility).

Key value for chemical safety assessment

Additional information

The results of acute fish toxicity studies are reported as LC50and NOEC values. The NOEC values represent the highest concentration measured in these studies that did not demonstrate mortality. In all cases this was the highest concentration attainable and measured under the conditions of the study. The use of the NOEC values reported in the results overview table to derive values for quantitative risk assessment is inappropriate as they are not true NOEC values.

I5 Summary:

The data used to characterize the fish acute toxicity of DTDP are consistent with the data for several high molecular weight phthalate diesters summarized by Staples et al. (1997). These data show that high molecular weight phthalate diesters do not produce acute toxicity to fish at or below their maximum attainable water solubliity. The acute fish dataset includes results for various species of freshwater fish including Oncorhynchus mykiss, Pimephales promelas, and Lepomis macrochirus, and a marine fish, Cyprinodon variegatus.

Staples et al. (1997). Aquatic toxicity of eighteen phthalate esters. Environ. Toxicol. Chem. 16(5): 875 -891.