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EC number: 203-326-3
CAS number: 105-74-8
For fish, aquatic
invertebrates and algae, short term toxicity tests, no effects were
measured up to the solubility limit in water accommodated Fraction type
studies. However, the substance is readily biodegradable and thus could
still be bioavailable to organisms. In some cases where no toxicity is
observed in short term studies, chronic toxicity may be found as the
critical body burden is not reached within the duration of the study. However,
the limit of solubility cannot be technically determined and these
studies are considered not technically feasible. In the environment, due
to the high log Koc of this substance, the vast majority of the
substance would be found in the sediment. A waiver is proposed for
pelagic testing and a sediment test is instead conducted.
The existing acute data for algae, fish and
Daphnia show a NOEC value > 100 mg/L (loading). As all effect values are
above 1 mg/L, there is no acute classification for this substance.
Dilauryl peroxide is readily biodegradable,
and the measured log Kow is >6.5 (estimated to be > 10.3). The
only chronic data available is 72 h ErC10 algae, > 100 mg/L loading).
When chronic data for less than 3 trophic levels are available the
classification is assessed using both the existing chronic and acute
data, and the most stringent outcome is chosen.
Based on chronic data: (72 h ErC10 algae,
> 100 mg/L): No classification
Based on acute data (NOECs > 100 mg/L
loading): No classification
Most stringent outcome:None
Overall classification: None
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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