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EC number: 203-041-4
CAS number: 102-60-3
The PNEC freshwater, marine waters, and intermittent release was derived
based on the data on acute aquatic toxicity and on chronic aquatic
toxicity where available following the guidance (GIRCSR Section 10, ECHA
2008). If combination of studies with confirmed EC50 values or NOECs and
limit tests was available for one taxonomic groups, preference was given
to the data with confirmed (no) effect concentrations. In the absence of
a confirmed (no) effect concentration from testing of one of species of
the three trophic levels, the lowest confirmed (no) effect concentration
of the other species was used to derive the PNEC.
There were no effects observed up to 100 mg/l (nominal) in any acute
aquatic toxicity testing. These results do not warrant classsification
according to GHS EU implementation.
Preliminary PBT Assessment
An assessment of the PBT status of the substance has been made
using all available data. The information available suggests that the
substance does not meet the PBT screening criteria as outlined in
Directive 2006/121/EC (Appendix A).
In a OECD301F (manometric) study with 9% mineralisation at 28 days
was observed. In three inherent tests, mineralisation was ranging from
20-36% after 28 days. It can be concluded from the available screening
tests that the substance exhibits inherent (primary) biodegradability,
and is therefore not expected to persist indefinitely in the
environment. However, since the substance is not readily biodegradable
and the biodegradation was less than 70% in the inherent tests, it has
to be classified as P, according to the PBT screening criteria.
In the absence of a measured
BCF value, the log KOW
can be used as a
screening criterion for bioaccumulative potential (i.e. >4.5). As the
log KOW of
the substance is below 4.5, the B/vB criterion is not met. Therefore the
substance is identified as not B.
The acute effect information for all three trophic levels is much
higher than the screening criterion of 0.1 mg/l. It can therefore be
expected that the substance is not toxic towards aquatic organisms.
Summary and Overall Conclusions on PBT or vPvB Properties
The overall conclusions, based on the present available data, of
the preliminary PBT assessment are that the (screening) criteria for
PBT/vPvB are not met and that further testing in the scope of the final
PBT assessment is not considered to be required.
substance is not a PBT/vPvB substance, therefore the emission
characterisation does not need to be conducted
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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