Registration Dossier
Registration Dossier
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EC number: 272-717-9 | CAS number: 68909-84-2
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The acute toxicity of Naphthalenesulfonic acid, dibutyl-, Me derivs., sodium salts to fish is read across from the structurally related substance Aromatic Hydrocarbons, C10-13, Reaction Products With Branched Nonene Sulphonated.
The LC50 calculated for this substance using the Spearman Karber Graphical Method was a 67.4 mg/L. These results are based on the test chemical as received as described in the analysis certificate. The results of the chemical analyses show that the measured concentration of test substance in all concentrations remained stable over a 96 hour period based on the C10 component of the test substance. Nominal concentrations were therefore used for endpoint determinations.
The purity of Aromatic Hydrocarbons, C10-13, Reaction Products With Branched Nonene Sulphonated as given on the CoA was 52.95%. Correcting the LC50 for this purity results in an LC50 of 35.7 mg/L
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 35.7 mg/L
Additional information
The acute toxicity of Naphthalenesulfonic acid, dibutyl-, Me derivs., sodium salts to fish is read across from the structurally related substance Aromatic Hydrocarbons, C10-13, Reaction Products With Branched Nonene Sulphonated.
The toxicity of Aromatic Hydrocarbons, C10-13, Reaction Products With Branched Nonene Sulphonated
substance to the fresh water fish Danio rerio(zebra fish) was tested under static conditions with reconstituted Dutch Standard Water (DSW) water for 96 hours in accordance with the OECD and EEC guidelines (Ref 1&2) for testing of chemicals. The test was performed in compliance with Good Laboratory Practice (GLP).
The test chemical is soluble in water at the concentrations tested. A non GLP preliminary test with the test substance showed no lethal effect at 10 mg/L and 100% effect at 100 mg/L. The definitive test was performed wih the following nominal test concentrations including a control: 4.2, 9.3, 20.6, 45.45 and 100 mg/L
The NOEC for the test substance was determined as 45.45 mg/L.
The LC50 calculated using the Spearman Karber Graphical Method was a 67.4 mg/L
These results are based on the test chemical as received as described in the analysis certificate. No corrections for active ingredient have been made. Endpoints are based on results after 96 hours only.
The results of the chemical analyses show that the measured concentration of test substance in all concentrations remained stable over a 96 hour period based on the C10 component of the test substance. Nominal concentrations were therefore used for endpoint determinations.
The purity of Aromatic Hydrocarbons, C10-13, Reaction Products With Branched Nonene Sulphonated as given on the CoA was 52.95. Correcting the LC50 for this purity results in an LC50 of 35.7 mg/L
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