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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

The 96h-LC50 for carp exposed to 2,4,7,9-TETRAMETHYL-5-DECYNE-4,7-DIOL was already
reached after 24 hours of exposure and was 42 mg/l with 0% mortality at 32 mg/l (LC0) and
100% mortality at 56 mg/l (LC100).


For daphnids the 48h-EC50 was 91 mg/l based on average exposure concentrations with a 95% confidence interval between 81 and 110 mg/l.


For the total test period of the algal toxicty test, the EC50 for growth rate reduction (ErC50: 0-72h) was 82 mg/l with a
95 % confidence interval ranging from 39 to 170 mg/l. The EC10 for growth rate reduction
(ErC10: 0-72h) was 15 mg/l with a 95 % confidence interval ranging from 7 to 30 mg/l.


 

Additional information