Registration Dossier
Registration Dossier
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EC number: 947-343-0 | CAS number: -
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Persistance:
The test substance was tested for ready biodegradability in the Carbon Dioxide Evolution Test (OECD 301B). Based on the rate of biodegradation of 80-90 % CO2/ThCO2 at the end of exposure the test substance can be evaluated as readily biodegradable in this test.
Bioaccumulation:
Not B/vB based on the BCF <= 2000 L/kg:
BCF was calculated with EPI suite, recognizing the biotransformation of the esters, the BCF values are:
Nonyl methacrylate Cas: 2696-43-7
Log BCF (regression-based estimate): 1.73 (BCF = 53.2 L/kg wet-wt)
Biotransformation Half-Life (days) : 0.471 (normalized to 10 g fish)
Log BAF (Arnot-Gobas upper trophic): 2.28 (BAF = 193 L/kg wet-wt)
Log Kow used by BCF estimates: 5.20
Estimated Log BCF = 1.726 (BCF = 53.24 L/kg wet-wt)
Decyl methacrylate Cas: 3179-47-3
Log BCF (regression-based estimate): 2.05 (BCF = 112 L/kg wet-wt)
Biotransformation Half-Life (days) : 0.649 (normalized to 10 g fish)
Log BAF (Arnot-Gobas upper trophic): 2.40 (BAF = 251 L/kg wet-wt)
Log Kow used by BCF estimates: 5.70
Estimated Log BCF = 2.050 (BCF = 112.3 L/kg wet-wt)
Undecyl methacrylate Cas: 16493-35-9
Log BCF (regression-based estimate): 2.37 (BCF = 237 L/kg wet-wt)
Biotransformation Half-Life (days) : 0.894 (normalized to 10 g fish)
Log BAF (Arnot-Gobas upper trophic): 2.48 (BAF = 303 L/kg wet-wt)
Log Kow used by BCF estimates: 6.19
Estimated Log BCF = 2.374 (BCF = 236.7 L/kg wet-wt)
Toxicity:
The test substance do not meet the criteria to be classified as T substance according to Annes XIII of REACH Regulation (EC) No 1907/2006.
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