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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Reference Type:
other: (Q)SAR Report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
no guideline required
Version / remarks:
(Q)SAR
Principles of method if other than guideline:
see attached (Q)SAR report section justification

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-ethylenedithiodiethanol
EC Number:
226-045-8
EC Name:
2,2'-ethylenedithiodiethanol
Cas Number:
5244-34-8
Molecular formula:
C6H14O2S2
IUPAC Name:
2,2'-Ethylenedithiodiethanol
Test material form:
other: not relevant for (Q)SAR
Details on test material:
not relevant for (Q)SAR

Results and discussion

% Degradationopen allclose all
Key result
Parameter:
probability of ready biodegradability (QSAR/QSPR)
Value:
1.258
Remarks on result:
readily biodegradable based on QSAR/QSPR prediction
Remarks:
Biowin7
Key result
Parameter:
probability of ready biodegradability (QSAR/QSPR)
Value:
0.864
Remarks on result:
readily biodegradable based on QSAR/QSPR prediction
Remarks:
Biowin6 (MITI Non-Linear Biodeg Probability
Key result
Parameter:
probability of ready biodegradability (QSAR/QSPR)
Value:
0.789
Remarks on result:
readily biodegradable based on QSAR/QSPR prediction
Remarks:
Biowin5 (MITI Linear Biodeg Probability)
Key result
Parameter:
probability of ready biodegradability (QSAR/QSPR)
Value:
3.844
Remarks on result:
readily biodegradable based on QSAR/QSPR prediction
Remarks:
Biowin4 (Survey Model - Primary Biodeg

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable
Conclusions:
The readily bidegradation was assessed with different models. All models report hat the substance is ewdily biodegenerable.