Registration Dossier
Registration Dossier
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EC number: 943-533-2 | CAS number: -
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Environmental classification and labelling of a substance is generally based on data from short-term aquatic toxicity results, the ready biodegradability of the substance and an experimentally determined BCF (or if absent the measured octanol/water partition coefficient). Available adequate chronic toxicity data is also relevant for the assessment of long-term aquatic hazards (Regulation 286/2011/EC).
Short-term aquatic toxicity data is available for all three trophic levels (experimental data for algae and fish; a reliable QSAR for daphnia). The lowest short-term L(E)C50 is for daphnia with a predicted 48-hour EC50 value of 1.4-3.4 mg/l. Since the EC50 is > 1mg/L the substance is not classified for short-term hazards to the aquatic environment according to the CLP Regulation 1272/2008/EC.
Chronic aquatic toxicity data is only available for one trophic level (algae). Therefore, the long-term hazard has been assessed based on both:
a) The chronic aquatic toxicity data for algae (NOEC = 1.2 mg/L, 72 hr EC10 = 1.9 mg/l, based on growth rate), which results in no chronic classification because the Chronic NOEC or EC10 is > 1mg/L, and
b) The acute aquatic toxicity data for the other two trophic levels (daphnia 48h EC50 = 1.4-3.4 mg/L, fish 96h LC50 = 4.1 mg/L) and environmental fate data (readily biodegradable and log Kow of 3.6), which also results in no chronic classification because the substance is readily biodegradable and has a log Kow < 4.
Thus it is concluded that the substance is not classified for the environmental according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.
Under the old DSD regulation the substance would be classified as R51/53 because the log Kow is > 3.
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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