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EC number: 238-270-9
CAS number: 14324-55-1
Short-term aquatic toxicity data are
available for three trophic levels (fish, invertebrates and algae). The
acute effect values for fish (Oncorhynchus mykiss), daphnids (Daphnia
magna) and algae (Pseudokirchneriella subcapitata) are 0.23
mg/L, 0.24 mg/L and 0.0475 mg/L, respectively. The substance needs to be
classified as Aquatic Acute 1 (H400), with an M-factor of 10.
Long-term aquatic toxicity data are
available for aquatic invertebrates and algae. The
chronic NOEC value for daphnids was determined to be 3.2 µg/L and the
chronic ErC10 value for algae was determined to be 47.4 µg/L. The
substance is not readily biodegradable. Based on this data, the
substance needs to be classified as Aquatic Chronic 1 (H410) with an
M-factor of 10.
As only two 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 <1 mg/L) and the substance being not readily biodegradable, the
substance needs to be classified as Aquatic Chronic 1 with an M-factor
of 10 (the resulting M-factor
derived for acute aquatic hazard classification is also applied to the
long-term aquatic hazard classification as Table 4.1.0
(a)(b, point iii) is used here for defining long-term aquatic hazard
(Guidance on the Application of the CLP Criteria, v5.0, July 2017)).
In conclusion, the substance is
classified as Aquatic Chronic 1 (H410) with an M-factor of 10, as in
accordance with EU Classification, Labelling and Packaging of Substances
and Mixtures (CLP) Regulation No. 1272/2008.
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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