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EC number: 948-498-7
CAS number: 143785-33-5
aquatic toxicity data are available for three trophic levels (fish,
invertebrates and algae), based on QSAR results. ECOSAR v2.0 was used as
the QSAR model using a water solubility of 2.47 mg/L and a partition
coefficient of 5.56.
acute effect values for fish, daphnids were not determined as no acute
effects at saturation are expected. For algae, the acute effect value
was determined to be 0.13 mg/L. For the algae, the effect value. The
effect value for algae (0.13 mg/l) is < 1 mg/l and therefore it is
concluded that the substance needs to be classified for acute aquatic
hazard as category Aquatic Acute 1 (H400: Very toxic to aquatic life)
according to EU CLP (EC1272/2008).
aquatic toxicity data are available only for aquatic algae for which a
chronic value of 0.18 mg/L was determined. Based on the chronic data and
the substance’ non-readily biodegradability, the substance needs for
chronic hazard (Chronic 2).
only one reliable long-term toxicity endpoint is available, chronic
classification needs to be based on both chronic and acute data of which
the most stringent outcome is used for the final classification.
Regarding acute data (lowest acute value in the range of 0.1 – 1.0
mg/L), the substance being not readily biodegradable and a log Kow of
5.56 (no experimental BCF available) the substance needs to be
classified. Therefore, based on short-term toxicity data, the substance
is classified as Aquatic Chronic 1 (H401: Very toxic to aquatic life
with long lasting effects) according to EU CLP (EC1272/2008).
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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