Reaction mass of Benzenepropanal, 4-ethyl-α,α-dimethyl- and 3-(2-ethylphenyl)-2,2-dimethylpropanal

Endpoint summary

Description of key information

In the table below the aquatic toxicity data are summarised:

Guideline	Test species	Endpoint	Result	Remark
OECD TG 203	Oncorhynchus mykiss	96-h LC50	> 0.7 mg/L (measured)*	Key study, Rel 1.
OECD TG 202	Daphnia magna	48-h LC50	0.87 mg/L (nominal and > 80% of the measured value)	Key study, Rel 1.
OECD TG 201	Pseudokirchneriella subcapitata	72-h ErC50 72-h NOErC	> 1.2 mg/L (measured) 1.2 mg/L (measured)	Key study, Rel 1.
OECD TG 209	Activated sludge, from predominantly domestic sewage	3-h EC50 3-h EC10	100 - 1000 mg/L 10 - 100 mg/L	Key study, Rel 1.
OECD TG 211	Long-term Daphnia	21-d NOEC	0.3 mg/l	Key study, Rel 2. The result is based on acute chronic ratio of Florhydral for Daphnia and applied to Floralozone

In the fish toxicity study the maximum nominal concentration of 0.87 mg/l was used to see if fish were more sensitive compared to Daphnia. The LC50 of fish exceeded the EC50 for Daphnia and therefore for classification and labelling and for the risk characterisation the fish will not be drive the endpoints in these frameworks.