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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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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
Study scientifically not necessary / other information available: In accordance with Column 2 of REACH Annex IX, the study need not to be conducted if the substance has a low potential for bioaccumulation. The test substance has a predicted log Kow<3.
Reason / purpose for cross-reference:
data waiving: supporting information
Endpoint:
bioaccumulation in sediment species, other
Remarks:
not determined
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
Justification for type of information:
Internationally accepted calculation method, EPI-Suite EPA (USA).
The test substance VL3 hydrolyses to ethyl lactate and ethenylsilanetriol.
Reason / purpose for cross-reference:
reference to other study
Qualifier:
according to guideline
Guideline:
other: REACH Guidance on QSARs
GLP compliance:
no
Remarks:
not applicable to QSAR models
Specific details on test material used for the study:
C=C[Si](O)(O)O
Type:
BCF
Value:
ca. 3.162 L/kg
Basis:
other: wet-wt
Calculation basis:
other: regression-based method
Remarks on result:
other: EPI-Suite estimated value
Validity criteria fulfilled:
not applicable
Conclusions:
The estimated bioaccumulation of the ethenylsilanetriol expressed as BCF is 3.162 L/kg based on the estimated log Kow of -2.01 ( EPI-Suite, BCFBAF v3.01).
Executive summary:

The bioaccumulation in aquatic species of ethenylsilanetriol was determined by calculation. This calculation was performed by the computer program from US-EPA (EPI-Suite software BCFBAF v3.01). The estimated bioaccumulation expressed as BCF is 3.162 L/kg based on the estimated log Kow of -2.01.

Endpoint:
bioaccumulation in aquatic species, other
Remarks:
not determined
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
Justification for type of information:
Internationally accepted calculation method, EPI-Suite EPA (USA).
Qualifier:
according to guideline
Guideline:
other: REACH Guidance on QSARs
GLP compliance:
no
Remarks:
not applicable to QSAR models
Specific details on test material used for the study:
SMILES : CC(O[Si](OC(C)C(=O)OCC)(OC(C)C(=O)OCC)C=C)C(=O)OCC
Key result
Type:
BCF
Value:
ca. 2.225 L/kg
Basis:
other: wet-wt
Calculation basis:
other: regression-based method
Remarks on result:
other: EPI-Suite estimated value
Validity criteria fulfilled:
not applicable
Conclusions:
The estimated bioaccumulation of VL3 expressed as BCF is 2.225 L/kg based on the estimated log Kow of 1.03 ( EPI-Suite, BCFBAF v3.01).
Executive summary:

The bioaccumulation in aquatic species of the test substance was determined by calculation. This calculation was performed by the computer program from US-EPA (EPI-Suite software BCFBAF v3.01). The estimated bioaccumulation expressed as BCF is 2.225 L/kg based on the estimated log Kow of 1.03.

Endpoint:
bioaccumulation in aquatic species, other
Remarks:
not determined
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
Justification for type of information:
Internationally accepted calculation method, EPI-Suite EPA (USA).
The test substance VL3 hydrolyses to ethyl lactate and ethenylsilanetriol.
Reason / purpose for cross-reference:
reference to other study
Qualifier:
according to guideline
Guideline:
other: REACH Guidance on QSARs
GLP compliance:
no
Remarks:
not applicable to QSAR models
Specific details on test material used for the study:
SMILES : O=C(OCC)C(O)C
Key result
Type:
BCF
Value:
ca. 3.162 L/kg
Basis:
other: wet-wt
Calculation basis:
other: regression-based method
Remarks on result:
other: EPI-Suite estimated value
Validity criteria fulfilled:
not applicable
Conclusions:
The estimated bioaccumulation of ethyl lactate expressed as BCF is 3.162 L/kg based on the estimated log Kow of -0.18 ( EPI-Suite, BCFBAF v3.01).
Executive summary:

The bioaccumulation in aquatic species of ethyl lactate was determined by calculation. This calculation was performed by the computer program from US-EPA (EPI-Suite software BCFBAF v3.01). The estimated bioaccumulation expressed as BCF is 3.162 L/kg based on the estimated log Kow of -0.18.

Description of key information

Data waiving: Study scientifically not necessary / other information available: In accordance with Column 2 of REACH Annex IX, the study need not to be conducted if the substance has a low potential for bioaccumulation. The test substance has a predicted log Kow < 3.

Supporting study: The estimated bioaccumulation of VL3 expressed as BCF is 2.225 L/kg based on the log Kow 1.03 ( EPI-Suite, BCFBAF v3.01).

The test substance VL3 hydrolyses to ethyl lactate and ethenylsilanetriol.

Supporting study: The estimated bioaccumulation of ethyl lactate expressed as BCF is 3.162 L/kg based on the estimated log Kow of -0.18 ( EPI-Suite, BCFBAF v3.01).

Supporting study: The estimated bioaccumulation of the ethenylsilanetriol expressed as BCF is 3.162 L/kg based on the estimated log Kow of -2.01 ( EPI-Suite, BCFBAF v3.01).

Key value for chemical safety assessment

BCF (aquatic species):
2.225 L/kg ww

Additional information