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EC number: 947-977-8
CAS number: -
The acute toxicity of two similar substances to daphnia magna and algae
was evaluated in rangefinding tests performed according to OECD 201 and
OECD 202. For substance 1 ( A complex mixture which included alkyl
naphthalenes, alkyl biphenyls, and alkyl benzene, low nonene alkylation)
a NOEC could be calculated of 100 mg/L test substance. For substance 2
(A complex mixture which included alkyl naphthalenes, alkyl biphenyls,
and alkyl benzenes + high nonene alkylation) a NOEC could be calculated
of 10 mg/L test substance. The results obtained indicate that there is a
slightly higher toxicity observed for test substance 2. As the results
of these range finding tests are considered to be valid and because both
test substances are very similar in their fate during the daphnia and
algae tests, the conclusion as obtained from these tests is considered
sufficient to select the more toxic substance as the worst-case
representative in the hazard assessment of both substances. All
concentrations have been converted on the basis of active ingredient
Classification according to GHS
Acute (short-term) aquatic hazard
Acute toxicity data for fish, crustacea and algae are > 10 mg/l.
Therefore the substance needs no classification with Catagory Acute 1.
Long-term aquatic hazard
Acute toxicity data are available for fish, crustacea and algae and all
E(L)C50 values are > 10 mg/l. Reliable chronic toxicity data are
available for crustacea and algae and with chronic EC10 values > 1 mg/l.
Further chronic fish testing has been waived to avoid unnecessary animal
testing as the available data suggest that fish is equally sensitive to
the substance as daphnia. Therefore additional information from a
chronic fish test is not expected to alter the proposal not to classify
the substance as hazardous to the aquatic environment. In addition the
bioaccumulation potential of the substance is very low given the log Kow
of 0. Based on the available information it can be concluded that
chronic toxicity is > 1 mg/l and therefore the substance does not meet
the criteria for classification with Categories Chronic 1, 2 or 3.
Safety net classification
The safety net classification does not apply. The substance is
inherently degradable and information on bioaccumulation is not
available, but the low log Kow suggests a lack of bioaccumulation
potential. In addition all chronic EC10 values are > 1 mg/l. Therefore
the substance needs no classification as Chronic Category 4.
Conclusion classification according to GHS
Based on the results from the acute aquatic toxicity (values > 10 mg/l)
and chronic aquatic toxicity (> 1 mg/l) and since the substance has a
low bioaccumulation potential, but is not rapidly biodegradable, the
substance needs no classification as hazardous to the environment
according to the CLP Regulation 1272/2008.
Classification according to 67/548/EEC (DSD)
Acute aquatic toxicity is > 10 mg/l and the substance is not rapidly
biodegradable. Chronic toxicity is > 1 mg/l and the substance has a low
bioaccumulation potyential (log Kow of -3.3). Therefore the escape
clause applies and the substance needs no classification as hazardous
for the environment according to Directive 67/548/EEC.
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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