Registration Dossier
Registration Dossier
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EC number: 700-617-1 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Reliable short-term toxicity tests results are available for freshwater fish (Danio rerio), invertebrates (Daphnia magna) and algae (Pseudokirchneriella subcapitata) for the registered substance, reaction mass of 3-(3,3-dimethyl-2,3-dihydro-1H-inden-5-yl)propanal and 3-(1,1-dimethyl-2,3-dihydro-1H-inden-5-yl)propanal and 3-(1,1-dimethyl-2,3-dihydro-1H-inden-4-yl)propanal. The relevant short-term values are:
Fish: LC50(96 h): 3.769 mg/L (measured, geometric mean)
Daphnia: EC50(48 h): 4.25 mg/L (nominal, supported by analysis)
Algae: ErC50(72 h): 6.75 mg/L; ErC10(72h): 5.41 mg/L (measured, geometric mean)
In addition, as no activated sludge respiration inhibition test is available on the registered substance, the reliable study performed on a source substance have been read-across for this endpoint. The source substance is a reaction mass of 3-(3,3-dimethyl-2,3-dihydro-1H-inden-5-yl)propanal and 3-(1,1-dimethyl-2,3-dihydro-1H-inden-5-yl)propanal. Both substances are multi-constituent substances containing isomers of alkyl indane naphthenic aromatic ring. The absence of the 3-(1,1-dimethyl-2,3-dihydro-1H-inden-4-yl)propanal isomer from the reaction mass in the source study is not expected to affect the outcome of the result for the target material. It's therefore considered appropriate to read-across available data to the target/registered substance. Therefore, the registered substance is expected to have a 3h-EC50 value >100 mg/L for activated sludge. The substance is considered non-toxic for the microorganisms in a water treatment plant.
Additional information
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