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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Bioaccumulation: aquatic / sediment

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
bioaccumulation in aquatic species: fish
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance has a low potential for bioaccumulation based on log Kow <=3
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
In accordance with Column 2 of REACH Annex IX, the study does not need to be conducted since the substance is expected to have a low potential for bioaccumulation (Log Kow < 3).
Reason / purpose for cross-reference:
data waiving: supporting information
Reason / purpose for cross-reference:
data waiving: supporting information
Reason / purpose for cross-reference:
data waiving: supporting information
Reason / purpose for cross-reference:
data waiving: supporting information
Reason / purpose for cross-reference:
data waiving: supporting information

Description of key information

Data waiving (study scientifically not necessary/other information available): In accordance with Column 2 of REACH Annex IX, the study does not need to be conducted since the substance is expected to have a low potential for bioaccumulation (Log Kow<3).

Key value for chemical safety assessment

BCF (aquatic species):
3.162 L/kg ww

Additional information

Data waiving (study scientifically not necessary/other information available): In accordance with Column 2 of REACH Annex IX, these studies do not need to be conducted since the substance is expected to have a low potential for bioaccumulation (Log Kow <3).

Supporting studies: Bioaccumulation (BCF) of main consituents has been calculated by EPI-Suite, EPA (USA), BCFBAF v3.01:

2-[3-(2{3-[4,5-dihydroxy-1,3-dioxolan-2-yl)(hydroxy)methyl]-4,5-dihydroxy-2-oxoimidazolidin-1-yl}-1,2-dihydroxyethyl)-4,5-dihydroxy-2-oxoimidazolidin-1-yl]-2-hydroxyacetaldehyde: The BCF of the substance was estimated to be 3.162 L/kg wet-wt (log BCF from regression-based method = 0.500).

2-[4,5-dihydroxy-3-(1-hydroxy-2-oxoethyl)-2-oxoimidazolidin-1-yl]-2-hydroxyacetaldehyde: The BCF of the substance was estimated to be 3.162 L/kg wet-wt (log BCF from regression-based method = 0.500).

4,5-dihydroxyimidazolidin-2-one: The BCF of the substance was estimated to be 3.162 L/kg wet-wt (log BCF from regression-based method = 0.500).

(2S)-2-[(4S,5S)-3-[(S)-[(4R,5R)-4,5-dihydroxy-1,3-dioxolan-2-yl](hydroxy)methyl]-4,5-dihydroxy-2-oxoimidazolidin-1-yl]-2-hydroxyacetaldehyde: The BCF of the substance was estimated to be 3.162 L/kg wet-wt (log BCF from regression-based method = 0.500).

1-{2-[4,5-dihydroxy-3-(1-hydroxy-2-oxoehtyl)-2-oxoimidazolidin-1-yl]-1,2-dihydroxyethyl}-3-(1,2-dihydroxyethyl)urea: The BCF of the substance was estimated to be 3.162 L/kg wet-wt (log BCF from regression-based method = 0.500).