Registration Dossier
Registration Dossier
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EC number: 266-358-7 | CAS number: 66423-13-0
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Mecoprop-P n-octyl ester hydrolyses rapidly in natural water. Therefore, the hydrolysis product Mecoprop-P acid (MCPP-P acid) was considered as relevant starting point for the PBT assessment of Mecoprop-P n-octyl ester.
For Mecoprop-P acid (MCPP-P acid) BCFs of 3 in the whole fish and 5.5 in the non-edible part were determined. The elimination half-lives were about 1 and 2 days, respectively. Mecoprop-P acid (MCPP-P acid) is expected to have a low potential for bioaccumulation.
Mecoprop-P n-octyl ester is neither readily nor inherent biodegradable. But the corresponding hydrolysis product Mecoprop-P acid (MCPP-P acid) is readily biodegradable and, therefore, not persistent in the environment. Consequently Mecoprop-P n-octyl ester is considered to be non-persistent in the environment as well.
The criterion for toxicity is not fulfilled and Mecoprop-P n-octyl ester and its hydrolysis product Mecoprop-P acid (MCPP-P acid) are therefore not T.
Overall for Mecoprop-P n-octyl ester neither the P, the B nor the T criterion are fulfilled.
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