Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Measured bioconcentration information for aquatic or terrestrial organisms is not available for p-tert-amylphenol, although modeled data are presented below. 

Reliable modeled BCF value for p-tert-amylphenol, using the measured log Kow of 3.6 was estimated to be 229 L/kg wt for fish. Other modeled data and supporting data for the structural analogue indicate that there may be low potential for bioaccumulation of p-tert-amylphenol. Although the RAR concludes that the study values suggest a modest potential for p-tert-amylphenol, to bioconcentrate, the report concludes that the modeled BCF may be overestimated. In all cases, though, BCF values are well below the REACH bioaccumulation criterion (B) of 2000.

Reliable modeled BCF value for p-tert-amylphenol, using the measured log Kowof 3.6 was estimated to be 48.6 L/kg wt for earthworm. Other supporting data indicate that there may be very low potential for bioaccumulationof p-tert-amylphenol in terrestrial organisms.

In accordance with REACH annex VIII, a substance fulfills the bioaccumulation criterion (B) when the bioconcentration factor in aquatic species is higher than 2000. Therefore, p-tert-amylphenol is not considered bioaccumulative in aquatic or terrestrial organisms.