Registration Dossier
Registration Dossier
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EC number: 249-125-4 | CAS number: 28654-73-1
Endpoint summary
Administrative data
Description of key information
Additional information
The test substance is with high probability acutely not harmful to aquatic organisms.
The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.
In a study following OECD guideline 203 the acute toxicity of the substance to fish was determined. Test fish of the species Brachydanio rerio were exposed to the substance for 96 hours in a static test system. At test termination a LC50 > 146 mg/L based on measured test substance concentrations was determined [BASF AG, 1999].
The acute toxicity of the test substance to aquatic invertebrates was examined in a GLP guideline study according OECD 202 with the test species Daphnia magna [BASF SE 2012]. At test termination after 48 h an EC50 > 100 mg/L was determined based on the nominal (loading) concentration of the test substance.
The acute toxicity of the test substance to aquatic algae was examined in a GLP guideline study according to OECD 201 with the algae species Pseudokirchneriella subcapitata [BASF SE 2012]. At test termination after 72 hours an ErC50 > 100 mg/L was determined based on the nominal (loading) concentration of the test substance.
Changes in the respiration rate of activated sludge in presence of the test substance were investigated in a study following OECD guideline 209. The respiration rate of domestic activated sludge was recorded for 30 minutes. At test termination no effects of the substance up to a concentration of 1000 mg/L was observed [BASF AG 1998].
The hazard assessment of the substance reveals neither a need to classify the substance as dangerous to the environment, nor is it a PBT or vPvB substance, nor are there any further indications that the substance may be hazardous to the environment. Therefore, and for reasons of animal welfare long-term toxicity testing in fish and aquatic invertebrates is not provided.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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