Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
For "Reaction mass of (1-phenylethyl)phenols and bis-(1-phenylethyl)phenols" (Phenol, mono- & distyrenated), PBT properties according to Annex XIII of Regulation (EU) 1907/2006 (REACH) were evaluated examining individually its three constituents mono(1-phenylethyl)phenol (two isomers, ortho (o)- or para (p)-, 2- or 4-monostyrenated phenol, MSP), 2,4-bis(1-phenylethyl)phenol (distyrenated phenol, DSP) and 2,4,6-tris(1-phenylethyl)phenol (tristyrenated phenol, TSP). Assessment was carried out based on the ECHA document ‘Guidance on Information Requirements and Chemical Safety Assessment Chapter R.11: PBT/vPvB assessment’ (Version 3.0, June 2017).
For mono(1-phenylethyl)phenol, criteria for P, B and T properties proved to be not fulfilled (see endpoint study record ‘Constituents o-, p-mono(1-phenylethyl)phenol’), thus identifying mono(1-phenylethy)phenol to be not a PBT/vPvB substance.
In the P assessment of 2,4-bis(1-phenylethyl)phenol, no conclusion could be reached, based on available information. But B and T assessment provided unambiguous results: Based on experimental data, it was verified that B and T properties were not fulfilled. 2,4-bis(1-phenylethyl)phenol was identified to be not a PBT/vPvB substance.
2,4,6-Tris(1-phenylethyl)phenol was assessed not to be a P/vP substance based on the results of an OECD 307 study (Aerobic and Anaerobic Transformation in Soil) (DT 50 for the test substance between 2.88 and 12.5 days). In a dietary bioaccumulation study in fish, the growth corrected, lipid normalised biomagnification factor (BMF) was determined to be 0.355 resulting in an estimate for BCF values between 6.695 and 10.395 L/kg, clearly indicating the substance to be ‘vB’. The toxicity criterion could not finally be assessed, as reliable data on long-term aquatic toxicity on fish are not available. Nevertheless, the PBT assessment can be concluded, as the substance is assessed to be ‘not P/vP’. Thus, the overall assessment shows the substance to be ‘not PBT’ and ‘not vP/vB’.
Based on available information, the constituents of phenol, styrenated (monostyrenated phenol, distyrenated phenol, and tristyrenated phenol) were demonstrated not to be PBT or vPvB substances. Thus, Phenol, mono- & distyrenated as well is identified to be not a PBT or vPvB substance.
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.
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